1 October, 2009

Tomo's misunderstanding gets the Science Club in trouble once again, and as punishment, the members are forced to clean the school pool. However, Tomoharu and the others follow a suspicious koala and find themselves in a labyrinthine underground tunnel system. Led by the koala, Tomoharu and the others find themselves at the Rakuroa ruins!

• The Disappearing World and the Ruins of Memorycrunchyroll mark as broken
• Search for Season 2, Episode 1 (1 results)