Pajama Party, Fly Into Outer Space! Pajama Pāti Uchū e kabe!! パジャマパーティ 宇宙へ翔べ!!
Arigase and Amakasu are inviting Koizumi to a sleep over, however Koizumi is reluctant to go. Saji somehow manages to convince Koizumi to go, but what is his ulterior motive for doing it?