Volume 5 begins with Chitan dressed as Voltron/Go Lion! Woo hoo! Yamada-san shows off her fire-baton twirling, Chitan does some bar-dancing in his underwear, a woman looking strangely like a character form Glass no Kamen appears, Chitan goes to Hollywood in a heart-covered spandex jumpsuit, Suzu looks an awful lot like Rei Ayanami, and the gang builds.. an ark?

Chapter titles are as follows:

1: Kore ga otona no yarikata da!:
2: Ore wa nandesu ka?: What am I?
3: Taikai zousai shuuheiki!?:
4: 5 gatsu 1 tachi no Higeki:
5: Mitsui de itai!:
6: Yaru~~~ desu!:
7: Uchi ni Kaerou (Kiaide!):
8: Yasumitai you ga ippai:
9: Koitsu wa Shikke da!:
10:Doushiyo Love Story:
11:Fuhhatsu no Hi:
12:Torauma-cho saigo no hi?: The last day of Torauma-city?