Hangyodon no Parallel Daisakusen

Three-part series about Hangyodon and friend's time travel adventures. This entry contains: 1. Kyouryuu Oukoku wa Oosawagi (恐竜王国は大さわぎ) Hangyodon and company end up getting sent back to the past through Itaro's latest Time Closet invention and have themselves a prehistoric adventure! 2. Mirai Sekai w