Kazui's case deals heavily with him telling 'the truth' to his wife, which ultimately led to her suicide. Given the theming around lies and pretending, the name of his second MV 'cat' (which can refer to a bottoming gay man in Japanese slang), the implication that he married his wife in order to be 'normal,' and his breakdown in the T2 voice drama, the most common interpretation is that he is in the closet. While it hasn't been officially confirmed, Kazui would be outed by his participation in Milgram on premise.
Not actual BDSM, but Jackalope in the "Second Trial Commencement Notice" uses language lightly evocative of it when discussing Haruka's and Mu's toxic codependency, such as "unlocked his desire to be dominated" and "supply and demand? Queen and slave?" The on-screen visual is Haruka's and Mu's icons connected with a chain, with Mu's icon wearing a crown.
there are some visuals where a characters mouth is covered (such as a very small scene where kotoko is depicted as wearing a muzzle although this does not actually happen.)
It's complicated, but three of the prisoners have abuse themes. Haruka was abused by his mother, whom he genuinely wants the approval of. Amane was raised in an abusive cult. While "Magic" initially suggests she agrees with the abuse and traumabonded, "The Purge March" later implies that while she still follows the cult's teachings she has genuine resentment for the leaders' hypocrisy, perhaps even killing one of her abusers. Mahiru appears to have been in a toxic relationship, and while her first MV suggests that she was the main problem it's hinted that it may have been mutual based on the text on-screen and her later MV; Mahiru still thinks the world of her boyfriend, which could be theorized as also traumabonding.
Note that the premise makes it up to the audience to decide whether to forgive characters for abusive or outright murderous acts, which might be thematically similar.
It's confirmed that Futa had a habit of cyberbullying others, which culminated in him doxxing someone which led to their suicide. Mahiru might have stalked her boyfriend before they got together, as text on-screen in "This is How to Be in Love with You" describes her early attempts at getting his attention before they got to know each other; it's discussed in her Second Trial drama whether she did (she denies it). "MeMe," Mikoto's first MV, uses blinking and CCTV imagery throughout, which has led to a theory that he was being stalked at some point.
DV elements feature in Mahiru's, Amane's, and Haruka's cases. Mahiru's deal with her being in a (mutually?) toxic relationship with her on-off boyfriend, which is implied to be the reason why he ended his life. Amane was raised in an cult who physically tortured her for helping an injured cat, which lead to her killing someone, implied in "The Purge March" to be one of her abusers. Haruka has trauma from his mother's abuse and neglect, which led to him committing murder. Haruka and Mu also develop a toxic, controlling dynamic in the Second Trial, with her explicitly enjoying that he's easy to control. Mu also says in her Second Trial that her ideal relationship is a similar dynamic.
Its implied that Amane and Haruka (probably Shidou and Mikoto too) was gaslighted by others. And also its implied that Muu and Mahiru unconsciously gaslighted someone
If it counts, three characters (Shidou, Kazui, and Mikoto) are confirmed to be smokers. Their PVs show them with cigarettes, and it's discussed in supplementary material.
Kazui is shown drinking in both "Half" and "Cat." It's implied in the latter that whatever he told his wife that killed her "with honesty" was said under the influence. Worth mentioning that he alludes to drinking being his favorite hobby. It's also implied Mahiru's boyfriend was a problem drinker, as on-screen text in "This Is How To Be In Love With You" describes him drinking heavily albeit in a cutesy lovey-dovey way; the accompanying visual shows Mahiru at a bar, with a recipe for a 'corpse reviver.' While this could further hint that Mahiru was responsible for his death, a 'corpse reviver' in cocktail speak is a tongue-in-cheek way of describing alcohol mixes intended to cure hangovers. This suggests that he got drunk frequently enough that Mahiru had to memorize a 'hair-of-the-dog' recipe.
in weakness, it is implied haruka killed a dog, as well in "the purge march" a cat is implied to be either dead or hurt, a cat is ripped apart by kazui during the ending scene in "cat" and finally dead rats are seen in "i love you"
Nothing explicit, but Kotoko's case deals with her being a vigilante who kicked a man to death for kidnapping a girl implicitly for pedophilic reasons. Also, it's more ephebophilia, but Jackalope makes suggestive comments about some of the female prisoners, including the ones in high school. Yuno's backstory deals with her engaging in enjo kosai, a form of sex work similar to 'sugar dating,' while still in high school, with her explicitly terminating a pregnancy that resulted from the experience. If you are worried about how the series portrays Amane, the good news is that it has so far avoided 'loli bait' in how she's treated both by the narrative and by other characters. She's generally portrayed as a survivor of an abusive cult who does act mature for her age, but more in a 'had to grow up fast' sort of way.
Mu's case deals heavily with bullying, with her being both a victim and a perpetrator. Both "After Pain" and "It's Not My Fault" have visuals alluding to physicality, such as dumping water over someone's head, dumping out school supplies (including scissors and a compass) also over someone's head, and destroying their belongings. A visual in "It's Not My Fault" has Insect!Mu knock over another insect girl which shatters her, to which her and the other girls dance on the shattered pieces. While the scene cuts to an apparent real-world scenario that implies verbal abuse, this visual can suggest something physical also went down. If it counts, Kotoko spends the Second Trial physically assaulting the "Unforgiven" prisoners, with two prisoners ending up in bandages, one of which apparently would have died from her injuries if the one doctor wasn't "Forgiven."
All of the prisoners wear outfits stylized after straitjackets. There’s birdcage imagery in “This Is How To Be In Love With You” (Mahiru’s MV). A girl is seen being dragged in “HARROW” (Kotoko’s MV). Haruka is kept in a prison cell for bits of “All-Knowing and All-Agony”
In "All-Knowing All-Agony", right at the end of the music video, a little girl is choked to death. As well as in "Weakness" towards the end Haruka is shown choking a little version of himself.
The Second Trial MV 'Backdraft' shows Futa's victim, and later Futa himself, getting lit on fire using spraycans and being reduced to ash. In context it's meant to symbolize the psychological trauma the girl went through as a result of being doxxed, and Futa's psychological state after being judged the same way he went after people online.
There is a visual evocative of it in "MeMe". One point shows a half moon with a 'blinking' effect (implying it's someone's POV), before John appears and what appears to be black dirt obscures the screen. It is potentially meant to symbolize an already-dead body being buried in context.
Mahiru's artwork for the Second Trial shows her in bandages, with her arm in a sling, one of her fingers at an odd angle, and a cast on her foot. She was attacked by Kotoko between the two trials, explaining the injuries. If you look closely at the end of "Bring It On," Futa's last cyberbullying target's RPG form appears to have broken bones, hinting at her death in the real world.
It's confirmed that Amane's cult would torture her if she disobeyed their teachings. The torture is stylized in a cartoonish slapstick way in "Magic," but "The Purge March" confirms two of the punishments were waterboarding and tasing, complete with more realistic visuals.
It's heavily implied that Kazui's wife died from suicide-by-jumping in his MVs. Nothing graphic is shown, but her death is hinted at through symbolism.
Mikoto's MVs contain the most blood and violence of the series, as we see him (or rather, John) washing off blood, attacking a person (and later symbolic mannequins) in a subway with a bat, and seemingly disposing of a body/evidence. Shidou's MVs have gore/organ symbolism that prevents them from being too graphic but are meant to hint at his crime of organ theft. While nothing outright bloody is shown, it's implied the cult in Amane's case used various forms of torture on her, including electrocution and waterboarding. The videos typically have occasional blood splatter otherwise, with most deaths hinted at through symbolism.
It's implied that Haruka's victim was a child who he strangled. Mu's victim was explicitly one of her former friends who played a part in her being bullied in some way. Futa's case had him essentially cancel a middle school student on in-universe Twitter, which led to the girl implicitly ending her life. Shidou's second MV suggests that his family-- a wife and two kids-- have passed away.
Jackalope makes creepy comments regarding Haruka and Muu, who are 17 and 16 respectively. Additionally, Yuno is sexualized despite being in highschool, although she's 18 so not a minor.
The premise involves the audience watching MVs that are supposed to represent the prisoners' thoughts and memories about a 'murder' they committed and judging them morally which influences the plot. Some of these are direct murders, while others are indirect. As of the Second Trial, no prisoners have died, but there was a 'near-miss' where a 'guilty' prisoner was attacked by an 'innocent' prisoner, which would have killed her if the one doctor wasn't also 'innocent.'
"HARROW," Kotoko's first MV, shows a man leading a young girl into a warehouse, with the implication being pedophilic. Kotoko arrives on the scene and beats him to death. The scene is revisited in her second MV, "Deep Cover." If it counts, the premise also involves a form of kidnapping, as the prisoners + Es are kept there without their consent.
nothing below his chest is shown but there is a point in 'meme' where mikoto's silhouette + his face/neck are shown in the shower, followed by a shot of bloody water going down the drain
As of the Second Trial, Amane behaves in a way that's evocative of it. Her updated artwork has her slumped over with lifeless eyes and unkempt clothes, and she uses 'we' and 'us' when talking about herself. Contextually it's meant to illustrate her doubling down on her cultic beliefs after being voted 'guilty,' but might still be startling.
The MILGRAM project is portrayed as morally grey and ominous, and while Es physically punishes the prisoners a few times it isn't glorified. Similarly, Kotoko being a vigilante is portrayed as moral greyness, with some of her worse qualities coming to the forefront in T2 as she takes up the 'honorary warden' position and physically assaults the other prisoners. It's heavily implied in his MVs that Kazui and his wife worked as law enforcement, but it's used more to justify his skillset in judo if anything.
i wouldnt say so, but a popular theory is that kazui might be gay, while he didnt cheat, it is important to mention that he mightve had an attraction to a guy while being married to his wife
This is implied in “All-Knowing and All-Agony” (Haruka’s MV). Also while not exactly a mental institution, MILGRAM itself is a prison which is worth noting.
None happens, but it's a minor plot point that there is no menstruation. Two female prisoners have a conversation on the timeline that implies that their menstrual cycles have stopped after finding themselves in MILGRAM.
Honestly, all the prisoners--who are there for murder-- are mentally ill in some way or another, hence the 'voting for therapy' meme. Some aren't violent and their crimes are more indirect, while others did directly kill someone. The only character with an in-text diagnosis is Mikoto (DID), but Haruka, one of the direct killers, is heavily implied to have a developmental disability.
Mikoto explicitly has DID, which plays a factor in his case. Additionally, it's implied Mahiru dissociates as a stress/trauma response, as on-screen text in "This is How to Be in Love With You" at one point mentions going to her boyfriend's house for the first time, and that she 'can barely remember a thing!' This can be interpreted that something went down that she blocked out, which is supported by the text in the video getting more jittery. In her second voice drama she says she 'thinks' Kotoko was the one responsible for her injuries, suggesting she similarly blocked out her beating physically assaulted.
Mikoto initially appears to be an 'everyman' type character who genuinely doesn't know why he's there. His first MV 'MeMe', plus his first voice drama, reveals that he has undiagnosed DID, and his alter beat at least one person with a baseball bat. While it's unclear if Mikoto has any childhood trauma (his parents are divorced according to his interrogations, but nothing beyond that so far), it's implied John Doe, the alter in question, came into existence after Mikoto started being overworked by his boss. While so far it appears there are only two alters-- Mikoto and John-- there's a theory that there's a third one. The intent seems to be to set up a moral situation where the audience is asked to judge a case where the perpetrator does not remember the crime or his reasons for doing it, especially since it's later hinted that John murdered out of what he believes was self-defense/protecting Mikoto. That said, MILGRAM still uses the 'evil alter' trope. Worth mentioning is that since John is technically not counted as a prisoner he can bypass in-universe security measures, which is a plot point in the Second Trial.
The lyrics in After Pain pretty much imply Mu may have been thinking of suicide. It's also worth noting Mahiru seemingly lost her will to live in trial 2 according to some of her dialogue in timeline convos
Only vaguely hinted at in a 'open-to-interpretion' way, but Mu and Futa both got the question "Are you satisfied with your gender?" in the Second Trial interrogation. Mu responds in the affirmative ("I'm pretty satisfied. I think it's good that I was born me〜"), while Futa's response is a little more ambivalent ("Well it is what it is. For some reason, it feels like if you're a man, you have to work. So it's annoying."). Some people have taken it to mean that there's a potential trans reading. That said, there haven't been further hints as of yet.
not on-screen, but in 'bring it on' futa's crime is cyberbullying someone into committing suicide & in 'this is how to be in love with you' a common theory is that mahiru's boyfriend committed suicide
Nothing is explicit other than a character having DID (which is a trauma-based disorder), but a few characters either have confirmed trauma or have theories about their trauma, leading into their case. It is pretty easy to read most, if not all, of the prisoners having unresolved trauma which contributes to their behavior in the MVs and supplementary material.
In "Weakness" and "Bring it on" especially. In Weakness, there are brightly colored doodles that cover the entire screen and rapidly flash in between each other, and a spotlight flickering on and off at the very start. In Bring it on, glitchy animations happen every so often.
The premise of the series is that we, as the audience, watch music videos that are supposed to represent the prisoners' thoughts, memories, and emotions toward their crime, and judge accordingly which will influence the plot. Characters react to our verdicts and undergo character development based on what choices we made. While in-universe we are somewhat represented by Es, there have been hints of the plot going further meta.
While not explicitly seen, Yuno’s song is called Umbilical and seems like her story will progress to talk about her giving birth or having an abortion.
Haruka is implied to be neurodivergent in some way, and is also heavily implied to be the subject of abuse which was a factor in his crime. He later enters a toxic co-dependent dynamic with another prisoner, Mu, with her liking that he is so easy to control.
Amane explicitly has trauma from being raised in an abusive cult, which forms a significant amount of her characterization and her motives for commiting murder.
If it counts, Jackalope, who is a jackalope, expresses interest in some of the female prisoners. It's not a human being turned on by an animal and more the other way around, and Jackalope is sentient, but worth mentioning.
In the mv Teardrop, Yuno is seen wearing lingerie and in sexual situations.
Jackalope also makes creepy comments about some of the girls.
(muu and haruka are absolutely not in a bdsm relationship, they are just friends and 16-17)