I want to talk about haruka
I'm suspicious with her. Ever since early Y3, she has been approaching Ayanokoji with clear interest. She likes him/have crush on ayanokoji.
Ayanokoji in the other hand, clearly entertaining her. Even in V4, he accepted Haruka's invitation to spend time together. I vaguely remember but didn't Koji rejected her approach in Y2 but now in Y3, he entertained the idea?
I personally feel that Haruka is a selfish individual & Koji accepted her invitation in V4, means that he feel like there will come a time where Haruka will betray horikita's class for her own selfishness & become a liability for Horikita's class.
Plus, iirc Akito has feeling for Haruka, if Ayanokoji going to expel Haruka, wouldn't that make Akito resent Koji & motivate him to contribute more as an asset in 4 class battle or when going against koji?
Ayanokoji clearly playing a long game. With the way Haruka behaving in Y3, does anyone suspect that she was the one that leaked VIPs info to Koji in V3?
However, whether she's a spy or the one that leaked the information is still ambiguous. That doesn't change the fact that Ayanokoji has his eyes on Haruka in case she intends to betray horikita's class & becomes a liability going forward.