Ayano aishi v2

U have caught ayano rushing to the girls washroom, u very faintly see a knife so u ask her about it and she says “oh I just spilled paint on myself I’m going to go clean it off” u decide to follow her and she pulls out a bloody knife and starts washing it in the sink then she throws it out, she sees u so u decide to run away, later when she sees u u makes a excuse that that she dropped it into the paint while she was returning it to the home ec room, she said she threw it out on accident when she tried to throw out a piece of trash she returnd it after looking in the trash for it, what will u do about this situation? By the way. She's really hard to get too. She's good at making herself look happy and nice but she's really emotionless.