No kidding, compare her to the other four heroines.
- Agawa: Completely emotionally unavailable, carrying a ton of baggage. Does clearly have a bad influence upon Gotou, intentional or not.
- Akito: A one sided puppy dog crush essentially, and Gotou’s affinity towards her is more based upon his usual lust but also a hefty amount of guilt than anything else. Not at all a healthy combo
- Shiina: Is basically just playing around with him, the most accurate read Shigemi had.
- Kiyomi: If we’re being totally honest, she obviously has more than a few screws loose, and to put it uncharitably; is sexually predatory (the definition of a “cougar”).
Meanwhile Shigemi actually attempts to understand him on a personal level, and despite some of her reservations, accepts his faults and legitimately tries to better him. There’s a reason Gotou was turned on by her in the previous arc; because she seems genuine to him and not in a crazy way like Kiyomi.