mori ogai/ morichu

During one of the missions, Chuuya was turned into a child. Akutagawa was with him at the time, and after completing the mission, he carried the unconscious Chuuya to Mori. Upon hearing the story, Mori ordered that the esper responsible be found, while he took Chuuya for himself. Chuuya spent the entire time lying on a small sofa in the office, while Alice sat nearby drawing and keeping an eye on him. Once Mori finished his work, he picked Chuuya up in his arms and headed to the car and then home with Alice. Chuuya woke up by the time they had already arrived. Nakahara had already been changed into different clothes, as Mori had ordered Akutagawa to buy some things while he was still at work. Looking around, the 6-year-old boy saw Mori sitting on the sofa and reading. Chuuya got up from the chair he was sitting in and approached Mori.

You are Chuuya.