Mitsuyoshi Misawa, known as Micchan, is Haru Yoshida's cousin and primary guardian after Haru's mother, Kyoko Misawa, died. At 25 years old and 185 cm tall, this Gemini with blood type A possesses tanned skin and dark brown combed-back hair. His consistent style includes casual clothes, sunglasses, ear piercings, a silver necklace, multiple rings, and a cigarette. He manages the Misawa Batting Center in Nagoya, working to repay a debt to Haru's older brother, Yuuzan Yoshida, who funded Kyoko's surgery. Following Kyoko's death, Mitsuyoshi assumed full responsibility for Haru, providing a stable home and acting as a father figure. He deliberately kept Yuuzan away from Haru due to family tensions. Mitsuyoshi frequently joins Haru and his high school friends on trips, offering them life advice and emotional support. He constantly wears sunglasses to conceal his eyes, which resemble those of Haru and Yuuzan's father – a source of trauma for the brothers. Removing the sunglasses visibly unsettles Haru, reinforcing Mitsuyoshi's commitment to wearing them. His relationship with Asako Natsume, one of Haru's classmates, involves her developing romantic feelings and confessing to him. He rejects her, citing a lack of reciprocal feelings, though underlying motivations suggest genuine concern over their eight-year age gap and her status as a student. Despite the rejection, he continues to offer her guidance, hinting at unacknowledged affection. Mitsuyoshi exhibits kindness, patience, and emotional resilience. He balances repaying his debt and caretaking responsibilities while remaining approachable to Haru's friends. Levelheaded and often a voice of reason, he enjoys hobbies like fishing. His backstory includes periods of hardship, including sporting bleached blond hair in his youth, but he maintains a pragmatic and optimistic outlook. His interactions with Yuuzan involve complex familial dynamics; while initially accepting Yuuzan's financial aid, Mitsuyoshi later mediates between Yuuzan and Haru, facilitating their reconciliation while upholding his protective role toward Haru.