Koichi Hayama is the fianc&eacute; of Suzuna Kuraki. He was subconsciously chosen as her fiance and subsequently brought to the estate to live while the Tsukimachi ceremony approaches. A tall and handsome university student, Koichi tends to clash with Suzuna, but this can be regarded as evidence of a tsundere  love affair. By the effects of an unexplained illness, he is unable to recollect any of his past, including his childhood or parents. He also could not recognize the faces of women before coming to the Kuraki estate. Koichi is a frequent smoker and has a elongated scar across his chest.  (Wikipedia)

Suzuna is the only daughter of the Kuraki family.  She is training hard to become a priestess.  Tomomi bings her to the house of her husband-to-be.  The mansion is under a strange spell, releasing the sexual desires of everyone inside.


<b>Awards: </b>
- Most popular voice actor in the Animage Anime Grand Prix (2004)
- Best Supporting Actor at the 1st Seiyuu Awards (2007)

**Non anime roles:**

- Kamisato Ayato - Genshin Impact (Video Game)
- Otto Apocalypse - Honkai Impact 3rd (Video Game)
- Clotted Cream Cookie - Cookie Run: Kingdom (Video Game)
- Phantom - Arknights (Video Game)
- Tatsulot - Kamen Rider Kiva (Tokusatsu series)
- Luocha - Honkai: Star Rail (Video Game)

A collection of short stories based off of the adult visual Kao no nai Tsuki. 

Kouichi Hayama