Akihisa Yoshii is the central protagonist and main narrator. He attends Fumizuki Academy as a student in the lowest-ranked class, 2-F, and is known as the “Ultimate Idiot” or “Punishment Inspector” due to his exceptionally poor academic performance. His Summoned Being wears a modified gakuran uniform, wields a bokken, and possesses the unique ability to interact with physical objects, a trait developed from extensive punishment duty practice. Any damage inflicted on his Summoned Being transfers directly to his own body. Despite low combat stats, his precise control and agility allow him to defeat stronger opponents through unconventional tactics. He later acquires a Platinum Bracelet that enables dual summons. Physically, he has ash-chestnut or ash-brown hair, brown eyes, stands 168 cm tall, and has a slim build. His parents work overseas, leaving him to live alone in poverty until his older sister, Akira Yoshii, returns to supervise him. He frequently spends his allowance on games and anime, surviving on minimal sustenance like salt water or fractioned noodles, which inadvertently honed his cooking skills; his signature dish is paella. Personality-wise, he is kind, honest, and fiercely loyal to his friends, often confronting higher-ranked classes to challenge the school’s inequitable system. He remains oblivious to romantic affections from Mizuki Himeji and Minami Shimada, misinterpreting their feelings as interest in his friend Yuuji Sakamoto. His history includes elementary school participation in the Pet Raising Committee with Mizuki Himeji, caring for rabbits. He also once comforted a young Minami Shimada by asking, “Will you be my friend?” in mistaken French, sparking her affection. His first kiss was with Minami Shimada. He is right-handed despite previously being left-handed, and his birthday is May 17.