宇喜多 佳司

Birthday: January 9, 1995 (Capricorn)
Blood Type: A+
Occupation: Staff member/Junior Fellow (scientist) at the 6th Laboratory of Atomic and Biological Organization (LABO)
Intelligence: High
Physical Strength: Average
Hobbies: Computers
Likes: That which is "just", trim and tidiness, honesty, research, vegetables (he's a vegetarian)
Dislikes: That which is "unjust", corruption, things that don't go according to plan, meat and fish, women (because he's bad at with dealing them)
Enneagram: Type 1 "The Reformer"

Natsuhiko's neighbor who works as a researcher (his position is something along the lines of an assistant manager) at the research institute.

He seems like an inflexible old man, but he's brimming with a sense of justice, an honest man who can be depended upon as long as injustice is not at play.

He got trapped in LABO after the explosion on September 16 when he failed to evacuate in time.

It seems he feels a sense of responsibility for the incident as a member of the facility's staff.