Shiki Ichinose's blood is Oni, and his father's is Momotarou. Normally, those with Momotarou blood hunt the Oni—but Shiki's father refused to kill him as an infant. Instead, he adopted Shiki and raised him despite the rebellious attitude and dangerous temper that come with Oni blood. When a member of the Momotarou Agency kills Shiki's father, Shiki vows to avenge him. But as he hones his abilities and learns to control his Oni blood, will he be strong enough to survive the dangers waiting for him…?
 
(Source: Yen Press)

The bloodlines of “Oni” and “Momotarou” have been passed down among certain humans for generations. 
 
Long ago, the Oni, aware of their own ferocity, lived in seclusion. However, their peace was shattered by an invasion led by Momotarou.
Over thousands of years, these two factions formed the “Momotarou Agency” and the “Oni Agency,” respectively, and have been locked in conflict ever since. 
 
The protagonist, Shiki Ichinose, suddenly learns of his Oni lineage following an unexpected attack by Momotarou. This revelation sets Shiki on a path to discover the destiny that lies within his blood — a meeting with the Oni dwelling within him. 
 
—A new generation of dark heroics begins here in this tale of demons!
 
 
(Source: Official Site)

[Official Website](https://www.lantis.jp/nishiyamakoutaro/) | [Profile ](https://www.81produce.co.jp/dcms_plusdb/index.php/item?cell003=%E3%81%AA%E8%A1%8C&label=1&page=2&cell004=&name=%E8%A5%BF%E5%B1%B1%E3%80%80%E5%AE%8F%E5%A4%AA%E6%9C%97&id=98) | [Twitter](https://twitter.com/Koutarotaro)

Koutaro Nishiyama is a Japanese voice actor and singer. He is currently affiliated with 81 Produce. In 2018, he won the Best New Actor Award at the 12th Seiyu Awards.

Jin Kougasaki