Gennosuke is a young man with long black hair tied an a ponytail and brown eyes. His eyelashes are unusually long, giving him a slightly feminine appearance. He wears a blue kosode with a long white haori over the top and dark blue hakama, tucked into his black socks. He also wears brown gloves which cover only the back of his hands and his wrists. He looked similar as a child, even wearing the same clothing minus the haori.

In many ways, Gennosuke is as much an oddity among his clan as his grandfather was. An idealist and scholar who believes in looking to the future instead of being dominated by the past, Gennosuke views the pursuit of any grudge to be an ultimately pointless and self-destructive practice. 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.

Shougen Kazamachi: Gennosuke's bloodline contains an inherited power called Shougen Kazamachi which is a Dojutsu which he learned to control from his teacher and grandfather Danjou Kogan. 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. Unlike his uncle's Dojutsu is not permanently enabled and can be triggered at will. When activated, Gennosuke's corneas turn crimson red and his pupils shine a brilliant gold color.

Heightened Senses: Due to his training with his grandfather, Gennosuke learned to rely on his other senses in the event his eyes should become disabled.

Swordmanship: Aside from his Dojutsu technique Gennosuke is extremely skilled with the sword and was able to match and even defeat a Captain-level Shinigami despite still being blinded and the Shinigami having two centuries of experience over him.