In a flashback, Rei's father shoots a dog after he (Rei) cant bring himself to kill it. The body is shown multiple times and its bloody and graphic. Skip THESE TIMESTAMPS (0:00-0:10 and 14:49-15:20) if that is upsetting to you.
sort of? a woman is abused by her partner and ends up abandoning her kid because she blamed her kid for everything bad in her life and she admits to having thoughts of physically harming her kid but she never does it
it's not explicitly said but a woman mentions that a man "took advantage of her", the man in question is also a human trafficker so it's very implied that she was sexually assaulted by him