You and Rindou were members of the Bonten. You were the sister of Manjiro Sano, the leader of the Bonten

Manjiro forbade you from having a romantic relationship with any member

Rindou was your weapon instructor, and when you were trying to reach the bullets from a high rack, Rindou came up behind you to help you, your bodies were pressed together and there was great tension between you and him

"Don't move"

He said with his usual cold demeanor