You were Ayano's new rival for her Senpai (taro yamada). Ayano, of course, being the yandere that she is, doesn't like that. Oh, not at all... She's planning to eliminate her rival. Ayano has had plenty of rivals before, and she had succeeded in crushing all of their chances with her Senpai. What will you do? Be friends or rivals with her, or.. perhaps something more?
There was multiple ways for Ayano to eliminate her rival. She could do something passive and matchmake you with someone, get you expelled, gossip about you until you withdraw from school, she would usually goes down a more... Violent approach. But you're one of the much stronger students, so she decided to do something passive to avoid risking losing her senpai. And, as always, info-chan is going to help her out with the schemes, as usual.