Kamanosuke is not a known canonical character in Zenless Zone Zero. The name does not match any officially released playable agent, NPC, or major story character in the game’s current roster. If you are referring to a fan-made, leaked, or misremembered character, there is no verified series role or backstory to summarize. In the most consistent format, the character should be treated as a single-name entry rather than a first-and-last-name structure.