Hase is spending the night at the yokai apartment.  He learns more about the people of the apartment, and about the differences between humans and yokai.
The High School Mage 

Yushi
Oberschulmagier
Yūshi
Yushi, el mago de preparatoria
Yushi, el mago de instituto
Yushi, un mago alle superiori
O estudante mago 

Yushi
Маг-старшеклассник 
Юши