S1E1: the main protagonist somehow accidentally ends up touching his female friend's breast (3:50-4:28). It is implied that this fondling is a result of the parasite living in his hand. Towards the end of this same episode, a man stabs a woman to death. The woman is in a state of undress, implying he may have raped her as well (from 20:40). S1E3: a female character verbally and physically confronts a male character for touching her butt on a crowded train (00:00-00:41). Later on in the episode, this character, who is acting as a teacher in the protagonists' school, requires the protagonist to have a meeting with her after class. A male classmate starts applauding the protagonist, wishing that he could be "taught" by the teacher after class instead of the protagonist, assuming that the teacher was trying to have sex with the protagonist (07:00-08:00). While there was actually nothing sexual whatsoever at this meeting and both parties knew this, the character who made this joke is perpetuating the idea that underage male students who are targeted by female teachers for sexual reasons are somehow lucky. S1E18: a male character who is revealed to have been a serial killer starts immediately masturbating upon seeing an attractive woman. When she leaves in disgust, he says to the main protagonist: "You got a cute face there, boy. I bet if you put on a skirt or somethin', I could rub out another one." and starts laughing (19:00-21:06). S1E19: there are flashbacks with the serial killer character, showing him stabbing a woman. It is revealed that he is the same person who stabbed a woman in the first episode. The way that he kills women seems to connote that he gets sexual pleasure from doing so (licking his lips, having a fiendish look in his eyes, etc.), and may have raped his victims in addition to killing them (02:22-03:11).