Ever since he was young, Bai Luo Yin has been living with his careless father, Bai Han Qi and his grandmother. When he turned 16 years old, his biological mother Jiang Yuan re-married, and her partner is the party’s high ranking official, Gu Wei Ting. Because of his mother’s death, Gu Wei Ting’s son, Gu Hai, has been harboring a deep grudge towards his father. Due to the random hand of fate, the two brothers with wildly conflicting emotional backgrounds have been placed in the same class. With time, they slowly develop a different kind of feeling.
It depends on your personal definition. Two characters start a relationship of sorts before learning they are now stepbrothers. This doesn’t change their relationship and they eventually become intimate.
Characters are referred to as a different gender as they identify as, however none of the characters are overly bothered by it. No trans/NB characters are present.
The drama only got one season and it ends on a very minor cliffhanger. However, all established main character’s are happy up to that point. There is a sequel novel if you wish to know the (also happy) full ending.
If you watch the uncut version: Yes. But many versions censor any sexual or even kissing scenes. No nudity is shown in either version and sex is implied.
Again, flagging it as “Yes” just because the main character’s have an odd relationship at the start. There are many scenes that can be taken as mental or physical abuse by a romantic partner by those who are affected by those triggers.
I’m going to flag this as “Yes” because there are scenes where a character forces himself on a not yet willing party. In the end the two have a fully consensual relationship, and the earlier moments never went past kissing but it could still be a bit much for some to handle.