Birthday: August 25 / Hometown: Tokyo / Height: 185cm / Age: 27 / Blood Type: A / Hobbies: Reading, listening to music / Specialty: "I'm good at most things" / Favorite Food: Hamburger steak / Favorite Word: Genius / Likes: Clear sunny days / Dislikes: Excessive flattery, true idiots / Favorite Book: "The Bishop Murder Case" Personality: King-like temperament. Refers to Gonbee and Jun as his servants. He is head over heels for Jun. His love is heavy. Ability: A genius of "Knowledge." A walking encyclopedia. His erudition is at a level where he literally "knows everything." This is not due to "memory capacity" but rather "organization skills." The human brain inherently "forgets nothing." The true nature of his ability is the pinnacle of the technique of "how to store" and "how to retrieve" those miscellaneous things.

Birthday: December 22 / Hometown: Kanagawa / Height: 175cm / Age: 28 / Blood Type: B / Hobbies: Playing the violin / Specialty: Getting information out of people, manipulating people / Favorite Food: Picky eater, but likes parfaits (for some reason he can eat anything if it's in a parfait) / Favorite Word: "Satan finds mischief for idle hands to do" / Likes: Nothing in particular / Dislikes: Green onions Personality: Kind. First person: I (soft, polite). He is in love with Koushirou. Refers to Gonbee Ajisai as "Gonbee" and Koushirou Hanamiru as "Koushirou."

Birthday: May 10 / Hometown: Tokyo / Height: 184cm / Age: 27 / Blood Type: O / Hobbies: Bottled ships / Specialty: Programming, hacking / Favorite Food: Lightly pickled eggplant / Favorite Word: "There are no weak soldiers under a strong general" / Likes: Finding life-hack gadgets / Dislikes: Spiders Personality: Kind. Koushirou often talks to him about Jun. He thought the two were already dating. Refers to Koushirou as "Koushirou" and Jun as "Yae."