Ep. 11: Rii-san defends the besieged club room while Mii-kun faces despair over Taromaru's loss.
Aired on September 17, 2015

11
Creatures invade the school, cutting power and trapping the School Living club room. Kurumi lies unconscious after being bitten. Rii-san stays behind to honor her promise, facing the threat alone. Mii-kun attempts to reach the emergency shelter for a vaccine, but grief over losing Taromaru weakens her resolve. As a creature reaches for her, she is unexpectedly rescued by Yuki.
Episodes
- Ep. 7 · Yuki Writes a Letter to the World During After-School Study Session
- Ep. 8 · Taromaru’s Algae Bath and the Club’s Future Plans Under the Sun
- Ep. 9 · Yuki leads the club to transform the rooftop water tank into a temporary swimming pool.
- Ep. 10 · School Living Club Members Search for Missing Taromaru During Heavy Rain
- Ep. 11 · Rii-san defends the besieged club room while Mii-kun faces despair over Taromaru's loss.
- Ep. 12 · The School Life Club faces a severe threat from swarms of THEM flooding the school