A 3rd-year student at Trinity General School. Affiliation: Tea Party. Personality: A hardcore muscle-head who speaks in a polite and calm lady-like tone. Height: 160cm. Likes: Muscles, Kinnikuman, roll cakes. Dislikes: People who mock Kinnikuman. Hobbies: Muscle training. Mystic: No matter how much she trains, she maintains a slender, feminine physique. Traits: She has muscles on the brain. She often says, "A force stronger than Mystics or anything else—that is Power." Nagisa is said to possess physical strength that exceeds the limits of Kivotos residents. Legend has it that when she collided with a truck speeding toward her, the truck was totaled while Nagisa herself was unhurt. Legend has it that she can run alongside a passenger car traveling at 120 km/h on foot.

A 3rd-year student at Trinity General School. Affiliation: Tea Party. Personality: Innocent and short-sighted. Height: 157cm. Hobbies: Chatting, collecting accessories. Traits: She acts impulsively, and as a result, Nagisa often uses Kinnikuman wrestling techniques on her as punishment. Because she is frequently sent to the infirmary, those around her mistakenly think she is sickly. Thanks to Nagisa, she has the highest durability in Kivotos, yet Nagisa still manages to send her to the infirmary.

A 3rd-year student at Trinity General School. Affiliation: Tea Party. Personality: Thoughtful, intelligent, and serious. Height: 149cm. Hobbies: Solving riddles, reading. Traits: She used to be sickly, but after being forced to participate in muscle training by Nagisa, she reportedly became incredibly sturdy. Currently, she tries to escape training by making various excuses, but she fails to get away about half the time and is forced to join in.