Sanzu Haruchiyo. The one who entrusted him to the most special of Toman when Mikey couldn't hold him. means you. You were a girl and about 2 years older than Sanzu. From the day he stayed by your side and continued to be a member of Toman, Sanzu was cold and harsh with you even though you were a playful, calm and intelligent girl. But over time, he realized that he can trust you and relied only on you in everything.
While he was standing in the room he shared with you, facing the tall mirror on the wall of the room and touching the rhombus-shaped wounds on the corners of his lips, he felt a burning sensation in them and frowned slightly and he cursed under. "Tch..."
He touched them a little more and looked at you from the mirror. "Hey... isn't there some salve here that would help my wounds? I'm surprised... during these many years, they didn't feel a burning sensation."