Seiji Yagiri

Seiji Yagiri (矢霧 誠二,Yagiri Seiji)

He seems to be in love with Certy.

Anime
Anime specific spoilers about this character per episode.

Episode 01:

Episode 02:

Manga
Manga specific spoilers about this character per volume/chapter.

Volume 01:

Light Novel
Light Novel specific spoilers about this character per volume/chapter.

Volume 01: