Souichiro is a brash, blonde, spikey haired teenager, who enjoys fighting. Later in the series, he cuts the majority of his hair off, and wears an eyepatch after the loss of his right eye. As a child, Souichiro was bullied and tormented because his family consists of demon exorcists, and were not well liked as a result.Souichiro is a teen obsessed with fighting and takes a lot of pride in that. Ironically, he believes that fighting doesn't resolve anything. Initially, he is believed to have an average, or below average intelligence. He is very cocky and gets angered easily, and always has wise cracks. He isn't very good with being around girls, because he had little contact with them up until high school because they thought he was creepy.

As the grandson of Lord Kouga Danjo, Gennosuke was chosen to be one of ten warriors to represent their clan of Koga Manjidani against the chosen ten of the rival Iga Tsubagakure clan. Upon his grandfather's death, Gennosuke ascends to take leadership of the clan.Yet despite being a man of peace, if pushed into a corner Gennosuke is more than capable of killing anyone who threatens him or his clansmen. In addition to his skill with the sword, Gennosuke wields a power called Dojutsu which he learned from his teacher and uncle Muroga Hyouma. A hypnosis technique, Dojutsu reverses the homicidal intent of anyone who meets the stare of its user directly. In other words; if someone expresses hostility toward him, Gennosuke is able to will his enemies into killing themselves instead of him. Even Yakushiji Tenzen thinks twice before challenging Gennosuke directly.

Определено Gennosuke

Gennosuke ще накара Nagi Soichiro сам да се обеси на червата си.

Срещу очите на Gennosuke, Nagi няма никакъв шанс

Gennosuke = imba

Хах, ти го каза

Kōga Gennosuke .. само трябва да си отвори очите