Isshinsai Ogata

* First appearance: Battle 119 * Age: Early-30s * Type: Dou * Type: Satsujin Ken * Yami Symbol: Flow * Martial Arts: Ancient Martial Arts Ogata is the Saint Fist of Yami's One Shadow Nine Fists. He is the master of Asamiya Ryuuto and the first man introduced who walked down the Path of Asura. He is a tall man with long light purple hair down to his waist with a muscular build and a calm face. He is usually seen with a cloak on and bandages around his wrists and a buckle belt around his waist to carry his items.

Like Alexander Gaidar and Diego Carlo, he possesses a far angrier side under his calm and composed self, but with slightly more control, only getting angry when someone or something is looking for a fight or provokes him. Ogata appears to be a sociopath, able to, at a moment's notice, change his demeanor completely. When he first meets Kenichi, he comes off as a kind man seeking atonement, whereas when he fights the bear, he shows his true colors, attacking the bear even after it was already dead. He has also shown no form of morals or concern for other people, regularly using other people through various manipulations to suit his need, even using them as test subjects for developing new techniques.

Ryuuto respects him much like the other Yomi members with their masters. However, Ogata seems to have a two sided relation with his disciple; he trains Ryuuto with several extremely high level techniques, but also uses him as a test subject for his untested techniques like the Seidou Goui without caring for his well being. Ogata was originally going to be the very first disciple of Ryozanpaku before Kenichi. However, the elder saw that he had evil intentions. Sometime after leaving he met up with Ryuuto, who was about to witness his fight with two armed opponents. He quickly defeated them and showed Ryuuto that martial arts killing still exists and took him in as his disciple.