11화: 마모와 우동코가 토마린과 타나카-산과 함께 추락한 UFO를 찾는 이야기
2015년 12월 15일 방영
Marimo runs into Udonko, who is on her way to look for an unidentified flying object that crashed into a nearby park. While searching for the UFO, they meet up with Tomarin and Tanaka-san, who points them in the direction of some peculiar "playground equipment." (Source: Crunchyroll)