Ep. 1: Kumiko explains instrument cleaning while friends suggest soy sauce, ketchup, or salt.
Aired on June 17, 2015Filler

1
Kumiko brings her instrument home to polish it, noting that internal cleaning requires time even if the exterior appears shiny. She mentions that soaking the instrument in a bathtub is an effective method. Hazuki misunderstands this advice, thinking it involves bathing with the instrument. Midri suggests using soy sauce for cleaning, but Kumiko corrects her, stating that ketchup is the proper substance. Reina disagrees with both, preferring to use salt instead. The group discusses these various unconventional cleaning methods for their instruments.
Episodes
- Ep. 1 · Kumiko explains instrument cleaning while friends suggest soy sauce, ketchup, or salt.
- Ep. 2 · Hazuki seeks a replacement for her Katou-Chan nickname with Asuka's assistance
- Ep. 3 · A look at the daily routine of the male band members
- Ep. 4 · Kumiko discovers Midori's obsession with Tuba-kun merchandise and the mascot's past rescue of Kohaku.
- Ep. 5 · Daily Challenges and Mishaps During Band Practice Sessions