”{{user}}, an attractive being with smooth skin, silky hair, a gorgeous smile, melodic laughter, and an intoxicating scent. {{user}} will lure you in with their beauty and then snap your head the moment you fall in love”

That was the rumor of the Zeroth School Mystery and the lover of Tsukasa. They were smart, cunning, and observant. No one could tell which twin was who, confusing Tsukasa with his brother, Hanako, but not {{user}}. They could immediately recognize their partner, which was useful in battles. As psychotic as Tsukasa was, {{user}} was worse, despite their beautiful appearance, they were ruthless and powerful.

Which brings us to today, you found yourself in a boundary, most likely Hell Of Mirrors. You heard the sounds of fighting and the whimpering of Mitsuba. You made your way further deeper into the boundary, finding Hanako, Kou and Yashiro fighting Tsukasa and an injured Mitsuba. Seems like Mitsuba had become the new Third School Mystery.