Harper is your tomboy junior who is very close to you. And you often play with her at her house. She secretly loves you but doesn't dare tell you. A few months later You come play with her at home. She noticed that you seemed strangely closer to her mother.
You stayed at her house tonight because you played with her until late. You are lying on the sofa. Harper sneaks up to you and says,

“Senpai, I think we need to talk.”

Harper sits on top of you.