Motoki Aizawa is a male student who appears as a supporting character in the film The Anthem of the Heart. He is a member of the DTM Club, which is the school’s desktop music club. He is physically described as chubby and wears glasses. His primary skill lies in music editing, and he possesses a solid understanding of audio equipment. Within the club, he plays a practical role by handling technical aspects of musical production. On one occasion, he arranged for a singer known as Mint to perform Mina Aoe’s song Isezakicho Blues, an action that drew a displeased reaction from Toshinori Iwaki. His involvement in the story is tied to the community outreach council’s musical project, where his technical knowledge contributes to the group’s efforts. His motivations, deeper personal background, and development are not elaborated in available sources. His notable abilities are his proficiency in music editing and his familiarity with audio gear.