Izayoi no hitomi manga

Izayoi no Hitomi summary:

A cool transfer student, Takuma, suddenly appeared in front of the perfectly ordinary Naoki. After that meeting, Naoki began to see things not feasible in this world. Naoki, unable to react to this, was told by Takuma: "I'm a sorcerer. And your ally." Between them is a grand past that only Naoki can't remember.