Hot Spring Hilarity / Frog on the Run!.Hot Spring Hilarity: Fuyuki wins 4 tickets to a spa (from a game rigged by Momoka, hoping he would take her). However, Koyuki is invited instead. Meanwhile Keroro is determined to solve a rubix cube given to him by Natsumi in order to go.
Frog on the Run!: Keroro accidentally breaks Natsumi's favorite coffee mug, so he runs away, but later meets Fuyuki, who is on his way to school for a big math test. Keroro and Fuyuki then walk across a lane, in which Fuyuki sees some familiar places he went to within that lane when he was little kid.