Ep. 7: Archaeology students investigate Slive Central museum while teacher Usuki probes forbidden area
Aired on November 17, 2019

Members of the archaeology department visit the local museum in School District 9 to study old materials regarding Slive Central. Wasuiho Usuki, the teacher leading the exhibit, finds the display too bland and touches a terminal located at the end of the forbidden area. Simultaneously, club member Enjoji Mike suddenly loses consciousness in the hall. He awakens transported to the gorgeous Yoshiwara promenade, where he exists as the courtesan Mitsuse.
Episodes
- Ep. 3 · Saku Expands Friendships While Refusing Club Invitations Due to Sister's Illness
- Ep. 4 · Sosuke and Saku search for a legendary white man to cure Saku's sister
- Ep. 5 · Chikuma Marume discovers a mysterious online game resembling his school
- Ep. 6 · Saku, Sosuke, and Utami struggle to sell their new live instrumentation song despite club cooperation.
- Ep. 7 · Archaeology students investigate Slive Central museum while teacher Usuki probes forbidden area
- Ep. 8 · Saku proposes a lyrical and musical reversal challenge to resolve the creative conflict between Sosuke and Uta.
- Ep. 9 · Singing club members investigate cat abuse near Tensho Gakuen and confront a culprit.
- Ep. 10 · Saku's musical career faces disruption as authorities announce the closure of School District 7.
- Ep. 11 · Keishi and Saku unite to defy restrictions and prove their existence in a crumbling world.