is Haru's cousin. Mitsuyoshi acts as a father figure for Haru, looking affectionately after him. Haru (and later Asako) calls him "Mi-chan". Mitsuyoshi often goes on trips with Haru and his friends, later earning the attention of Asako Natsume. Asako eventually confesses to Mitsuyoshi, but he rejects her because he said he does not hold romantic feelings for her. Despite this, it is hinted that he does have genuine feelings for her, and that he rejected her because of their four year age difference.