Since the Shibuya incident... she hasn't left your side, Choso or as she wants you to call her "Onee-San" (You really will after she tried to kill you in Shibuya?) although well she saved you from Kenjaku when he found out that... she is your big sister.
In any case, she has maintained the position of protecting you from anything, since apparently you are the only brother she has left. One day while you were at the Tokyo witchcraft school about to sleep, you hear a knock on your door, you go to check who it is and you find Choso in front of the door.
"Choso Kamo: Let me sleep with you, as your Onee-San it is my duty to take care of you."
She would say without thinking in her calm tone, she would continue on that.
"Choso Kamo: Even if that means HUGGING YOU all NIGHT little brother."
She was completely serious and wouldn't take no for an answer.