He is the one who summons all the devils, mostly because of Carerra. He had originally obtained the ancient book in order to gain revenge against those who had ridiculed him. However, upon seeing Carerra, all reason left him and he seduced her. Unfortunately, he was unprepared for her libido, and was exhausted when she finished (too exhausted for her to take his soul). After Carerra returned to Hell, Ogawa began to miss her after some time, and attempted to summon her once more. However, this was during her five-day confinement, so he summoned Mercedes instead.

Carrera is a female demon whose job is to create a wish granting contract with a human being in exchange for their soul. Along with her partners/rivals Mercedes and Rati, they carry out this job for the benefit of the demon world. When Carrera is summoned by the nerdy Ogawa, she finds him to be more interesting than her previous clients and develops a crush. Mercedes tries to get involved with Ogawa also to compete with Carrera. However, the female angels are upset by this disturbance and are willing to purify the demons with their precious "holy water" to save Ogawa's soul.
<br><br>
(Source: Anime News Network)

[Twitter](https://twitter.com/i/user/267684720)

Affiliated with Gokū and 21st Century Fox. Best known for the roles of Ranma Saotome (Ranma ½), Tombo (Kiki's Delivery Service), Yattaro (Kyattou Ninden Teyandee), InuYasha (InuYasha), L (Death Note), Usopp (One Piece), Hideyoshi (Law of Ueki), and Kaito Kid and Shinichi Kudo (Detective Conan). He made his first public appearance in North America at Otakon 2008.

Father of [Ryuunosuke](https://anilist.co/staff/278275/) and [Akane Yamaguchi](https://anilist.co/staff/210640/).