When i was in the beginning of this manga i read some of the comments and was confused cause they all was scting like Satou had killed their entire family I was so confused cause i thought he was just a little boring but now i totally get it.
Although I actually think Satou's character is really interesting and i have no problem with toxic relationships i get really annoyed how none of the other characters really react to Satou in a way they should (esp Yoshida!) which just makes me hate Satou.