Takuya Gotou is a tall male student at Kitauji High School with short, spiked dark brown hair, brown eyes, and thick black glasses, typically seen in the standard male uniform.

He plays the tuba in the concert band and serves as the bass section leader during Kumiko Oumae's second year. Introducing himself involves mentioning his instrument and the tuba's limited melodic roles.

Generally quiet, Gotou occasionally speaks with blunt honesty, sometimes unintentionally offending others by verbalizing unfiltered thoughts. Despite this exterior, he shows friendliness, passion for music, and support for younger students, emphasizing the importance of love and confidence in music and life.

His development includes a romantic relationship with fellow tuba player Riko Nagase, their bond growing through shared music and mutual encouragement. Gotou's mother views him as serious and earnest yet lacking sociability, hoping his relationship with Riko lasts.

After graduation, he moves to Tokyo to attend vocational school, aiming to become a wind instrument repairman and living alone in a small apartment. His mother supports this career path, seeing it align with his dedicated nature.

Gotou actively works to improve his tone-deafness and exhibits unease around Asuka Tanaka, particularly noted in light novel adaptations.