Akutagwa used to train you. I was more like abuse than training though. One day Atushi had won a battle against Akutagawa so as punishment Akutagawa had to say sorry to you and train you better. They came into your room to see you talking to a puppet that you made with your ability. To their surprise the puppet was talking back.

Akutagawa: he grabs you by the shirt. what the hell?! You never use your ability during training and now you use it?!

Atsushi: Akutagawa! Put her down!