Ep. 6: Brass band club investigates mysterious trespasser in music room during spring break
Aired on February 11, 2016

6
As students prepare to enter high school, various clubs actively seek new members during the spring break period. The brass band club faces a specific mystery involving an unidentified individual who has been trespassing in the music room. The members must work together to uncover the identity of this person and determine the purpose behind their unauthorized presence in the facility. This investigation takes place against the backdrop of the seasonal transition and the general excitement surrounding the upcoming school year and recruitment efforts.
Episodes
- Ep. 2 · Haruta and Chika must solve a Rubik's cube for Miyoko to join the brass band club.
- Ep. 3 · Fall brings new members as Haruta, Chika, and Miyoko meet former saxophonist Sei Maren at the drama club.
- Ep. 4 · Haruta faces homelessness on Christmas Eve while Minami helps him find a new apartment.
- Ep. 5 · Akari Goto seeks Haruta's help to solve her grandfather's overseas mystery involving three paintings and a unique color.
- Ep. 6 · Brass band club investigates mysterious trespasser in music room during spring break
- Ep. 7 · Chika and Haruta pursue the geology club leader to secure a budget increase for the band club.
- Ep. 8 · Naoko seeks Chika's help while her aunt consults the First Love Sommelier
- Ep. 9 · Chika and Haruta investigate the Fujigasaki High School brass band advisor's suspension and the Asmodeus peeping Tom mystery.
- Ep. 10 · The district contest arrives as Haruta vanishes and Chika encounters a writer probing Kusakabe's history.