I've completed all the content checklists and endings, the alphabet challenge, tried everything possible with Osana and Amai, befriended all the students, and tried the custom mode. I have no idea what to do with the game now.
Are there any challenges, secrets, or anything like that I can do?
One theory I'm considering is that Info-chan will continue to help in the first few Rivals, then stop for some reason in the last or penultimate one. I don't think Info-chan would consider Ayano an enemy, as she's aware of what Ayano is capable of, but she might stop helping her out of fear of Megami or for other reasons, which would make Megami much more difficult! Since there isn't much information about Info-chan, it wouldn't be difficult to give her a motive or a past that would cause her to stop helping Ayano.
I don't think it needs to be necessary; it's probably just something that will happen if you make certain choices. Unlike the challenges, Info-chan will still be in the game; she won't help, but she will influence the game's story.
What do you think?
Taro is so ordinary, he has no personality, no presence, nothing! Yet there are eleven girls with different personalities and looks who fall in love with him? I feel that Ayano and Osana make a bit of sense, but apart from that, none of the other rivals have a real reason to love Senpai.