Hikaru Tada. Ability: Luminescence (glows a little bit). Birthday: September 12. Club: Journalism Club. Characteristics: The protagonist. A high school boy who is generally negative and low-energy due to his plain ability. He plays the straight man, providing sharp retorts to those around him. Address: Usually called by his last name, Tada. First person: I (casual/masculine).

Masayoshi Kuroi. Common name: Masa. Ability: Supergravity Celestial Body (Black Hole). Birthday: March 14. Club: Basketball Club. Characteristics: Hikaru's best friend. He possesses a dangerous ability capable of causing a global crisis, but he is an extreme idiot with an innocent personality. Address for others: Calls Busujima "Bussu." First person: I (casual/masculine).

Mirai Misato. Ability: Future Sight (Vision). Birthday: May 5. Club: Track and Field Manager. Characteristics: Known as "Mirai." One of the gyarus in the story. She wastes her powerful ability to see the future on trivial daily things, like avoiding failing grades on tests. First person: I (casual/feminine/slangy). Nicknames for others: Hikaru -> Pikarun, Masa -> Masa, Shoko -> Heeko, Busujima -> Sumisumi.

Shoko Taira (Heeko). Ability: Parallel World Travel (Butterfly Effector). Birthday: November 11. Club: Go-home Club. Characteristics: Known as "Heeko." A gyaru who is always with Mirai. She has a god-tier ability to freely travel between parallel worlds (the multiverse), but she spends her time lazing around like a normal high school girl. Nicknames for others: Same as Mirai. First person: I (casual/feminine/slangy).

Riko Yamikawa (Rikotya). Characteristics: Despite her Jirai-kei (landmine-style) appearance, she is a unique character who delivers sharp retorts and comedic routines. Member of the Tea Ceremony Club. Nicknames for others: Mostly the same as Heeko and Mirai. First person: I (standard/feminine).

Name: Sumire Busujima. Common names: Bussu, Sumisumi. Birthday: July 19. Ability: Poison (Charge type—spits physical poison from her mouth while spitting verbal venom). First person: I (standard/feminine).