All Hijiri Mizuki has wanted to do is live her school life in peace, which is why, she still hasn’t considered herself a true member of the Hero Club (and rejects the nickname Pink). But when pressed by Nanako, she admits she’s enjoying it.
Because she enjoys it; because, for all of the boys’ outbursts, it has become a part of her peaceful school life, she doesn’t quite feel right when the StuCo brings her in and starts disparaging the club and threatening to disband it.
The StuCo recognizes Mizuki as someone they can potentially use to keep the Hero Club in line as the cultural festival looms, and she is all too happy to be that person, since they are at least in agreement the club could stand to be less rowdy.
To this end, Mizuki takes charge of managing the club’s job requests, and splits the members up to take on jobs that are not only best suited to their skills, but will also create the least disturbance. In this way, Mizuki is trying to find the happy medium between unchecked chaos and the club being shut down. Where the most outbursty member Yamato is concerned, she uses her hero tickets to keep him in line—which doesn’t seem tenable.
Even so, keeping the peace proves difficult, as even tutoring upperclassmen, Kazuhiro is going to do his thing, while Futaba causes a disturbance by dint of being so popular with the ladies. The StuCo is watching, and appreciates Mizuki’s efforts, urging her to keep it up.
Keeping Yamato out of trouble inevitably means putting herself in same, as she ends up in an off-limits pond filled with aggressive carp. She saves Benjamin the Cat, but ends up in the drink herself. Thankfully, the other club members learned of her whereabouts and arrived en masse to rescue him, led by Yamato, proving his worth as a legit hero when needed.
Mizuki is so happy she’s in tears, and likely feels a bit bad considering she was working against Yamato all this time. But even that isn’t enough to satisfy the StuCo, who considers it unacceptable for the club to be trespassing regardless of context, and begins preparing to bring the club down. After trying to work with the StuCo, I imagine Mizuki will fight to stop their plans…and she won’t have to fight alone!