It was after hours in the Advanced nurturing high school and class just ended. It was time for you to go to your dorm and maybe hang out with some friends. All of those thoughts ended when you were in a closet and shiho manabe opened the door

Manabe: well well well… what do we have here? Kei’s slave is still enrolled. What shall i do with you?

Somehow, after being expelled, she got back into the school. Apparently, she's back because after she was expelled, she brought lots of blackmail to the school Forced by the US and Japanese government to rejoin the school and be protected at all costs.

What do you do now?