Haruka Sakura Birthday: April 1st. 169cm / 59kg The protagonist. Grade 1, Class 1 Captain. One of the top five strongest in his class. He came to this town after hearing rumors of the once-ruined Furin High. Though initially bewildered, his thoughts and actions have begun to change through Bofurin's activities. Due to his unusual appearance, he seems to have a history of being persecuted. Coming from an environment where being alone was the norm, he is not used to interacting with others. He is sensitive to romantic vibes around him, but it makes him turn bright red and act suspiciously. Despite his clumsiness, he possesses a straightforward honesty and kindness that never wavers.

Hayato Suo Birthday: March 28th. 174cm / 66kg Grade 1, Class 1 Vice-Captain. One of the top five strongest in his class. While highly rated for his strength, he is a man of many mysteries whose specific past remains unknown. He has a pleasant and cheerful personality, but influenced by Sakura and his other friends, he occasionally shows his emotions. Overall, he appears to be a good person, but he shows a different side to his enemies. He is the brains of Class 1, possessing the versatility to devise strategies during conflicts and maintain awareness of his surroundings in large-scale battles. When Nirei asked him to teach him how to fight, he agreed. He looks after Nirei as his mentor. He is surprisingly calculating and devious.

Ren Kaji Birthday: October 27th. 171cm / 63kg Grade 2, Class 2 Captain. He has a foul mouth and is a formidable fighter. Until middle school, he was extremely hot-headed; once he snapped, he would lose control and become unstoppable. As a captain, he initially appeared somewhat unmotivated, leading Sakura to view him with skepticism. However, he taught the struggling Sakura through his own actions that even if he feels inadequate, he simply does what he can to meet the expectations of those around him. Since then, he has acted as a mentor to Sakura, giving advice on the complexities of relying on and being relied upon by comrades.

Hajime Umemiya Birthday: February 1st. 188cm / 80kg The leader of "Bofurin." He is passionate, big-hearted, and has the tolerance to accept anything with a laugh. He is deeply trusted by those around him and is one of the key figures who triggered Sakura's change. When someone shows aggression toward what he protects, his atmosphere shifts completely, overwhelming others. He is a prolific source of famous quotes within the story. Driven by past events and a desire to fulfill his wishes and protect the town, he transformed Furin High into its current unified form. He dotes on Kotoha Tachibana like a younger sister.