Kuchime is someone who was granted the Holy Grail while living rather than a member of the new generation born with it innately. He has Command Spells, but is a Stray Master without a Servant. He works as an information broker for a living, although not a very reliable one, since he sold fake information about Nzambi's serial killings to Makki.
Kuchime is a self-proclaimed otaku who enjoys playing music as a street performer. Calling himself an improvisor at heart, despite his upbeat tunes the lyrics he makes up for his songs tend to be rather dark.
The Boy Among the Stars
Erice Utsumi and Karin met Kuchime when Voyager wandered off from them and found him playing his music. They later invited him to watch the Holy Grail War Tournament with them, but he never showed up, only texting Karin "Sorry." After Nzambi assaulted the Colosseum with her zombies, Karin thought she saw Kuchime.
Nostalgic City Shinjuku
Kuchime was arrested by Makki for giving her false information about the Command Spell Hunter incident. However he was shortly released as there was not enough evidence to connect him to the incident, as well as him having an alibi for Nzambi's attack on the Grail Tournament, having been in Shinjuku at the time. Erice also suspected him of being connected to Anubis at first, but dismissed it after hearing this from Makki.