■ Real name: Koji Tadokoro. Member of the swimming and karate clubs. A 24-year-old student attending Rikkyo University. Height: 170 cm. Weight: 74 kg. His seniors in the karate club include MUR, his junior is KMR, and his junior in the swimming club is Toono. First-person pronoun: Ore. ■ He is the biggest jokester in the karate club, often skipping practice or fooling around, which gets him scolded by the advisor AKYS every time. While he seems to lack talent for karate, his actual strength is said to be above average. Special move: "Jaken Yoru Ikimashou ne" (So let's go at night). Possession: "Yawaraka Smartphone." ■ Family: Father (Yajuu Chichi), Mother (KNN/Kanna), and younger sister (YMN/Yamin).

■ Real name: Tomomasa Miura. Shaved head, fair-skinned, with a plump and muscular build. Ends sentences with "-zo." A student at Rikkyo University. Member of the karate club. He is the oldest senior in the club and is called the reliable "Great Tactician Senior." First-person pronoun: Ore. ■ An excellent presence in the karate club, highly evaluated by the advisor AKYS and trusted by his juniors (Yajuu, KMR). ■ He has a younger sister named RMA (Rumia) whom he often follows along with. He also has a surprising side—he loves Piplup.

■ Real name: Naoki Kimura. A student at Rikkyo University. Member of the Beast Karate Club. A serious presence in the club who acts as the "straight man" (tsukkomi) to his seniors. First-person pronoun: Boku. ■ Though he has a somewhat timid personality, he possesses great talent for karate, which is recognized by MUR and AKYS. ■ However, when he loses his temper, his personality suddenly flips, and he snaps: "Don't you mess with me."

■ Real name: Toono Mazuchi. A student at Rikkyo University. Member of the swimming club and Yajuu Senpai's junior. First-person pronoun: Boku. ■ Has a reptile-like appearance. He wears a black shirt with something like a CD on the front and a receipt-like object on the back. He has a high-pitched voice and is sometimes called "Toono of the World."

■ Real name: Akiyoshi. A professor at Rikkyo University and the advisor of the Beast Karate Club. First-person pronoun: Ore. ■ A former member of the Beast Karate Club who has won national championships (114514 Tournament) and world championships (Ketsu-lympics 810). A master of Beast Karate. ■ Despite being in his 30s, he boasts overwhelming strength that hasn't faded with age. Strict guidance and grueling practice are daily occurrences in his club, which is likely why there are only three members.

■ Real name: Kanna. Yajuu Senpai and YMN's mother, and Yajuu Chichi's wife. A native of the Kansai region who speaks in Kansai dialect. ■ Because she underwent martial arts training in the past, she possesses strength that rivals her son's. ■ As a former martial artist, one might expect a fiery personality, but she is actually a normally kind and gentle person.

■ Real name: Yamin. Yajuu Senpai's younger sister (commonly known as Yajuu Imouto), KNN's daughter, and Yajuu Chichi's daughter. She calls Yajuu Senpai "Aniki." She does not speak in Kansai dialect. ■ Around 12 years old. In the middle of a rebellious phase, she is quite defiant toward Yajuu Senpai. She goes to the same school as RMA and they are friends. Due to certain circumstances, she is sometimes called the "Daughter of the Homo-Circle." She likes squid ink crackers.

■ Yajuu Senpai's father, KNN's husband, and YMN's father. A corporate salaryman. Famous for being strict with SGW (Sagawa) delivery workers. Specifically, when the rookie deliveryman MYN (Miyano) makes a delivery, he grumbles, "You again... It's gonna break..." When MYN says, "I'm sorry, please forgive me, I'll do anything!", he responds, "Hmm? You just said you'd do anything, didn't you?" and then... (I'll leave the rest to your imagination). However, he usually has a gentle personality.