S1, E3: To better assist MuMu, Sakurako joins the university's home appliance club, the "Human Regeneration Study Group." Akihiro, the guy she secretly has a crush on, is also a member,. Is this her lucky chance to get closer to him? Meanwhile, MuMu finds himself cornered by his fellow alien compatriot, Decimaru. However, Decimaru has an unfortunate encounter with an automatic door...