Mondaiji-tachi ga Isekai kara Kuru Sou desu yo?: Onsen Manyuuki
English title: Problem Children Are Coming from Another World, Aren't They? OVA
Japanese title: 問題児たちが異世界から来るそうですよ? 〜温泉漫遊記〜
Type: OVA
Episodes: 1
Source: Light novel
Genres: Comedy, Fantasy, Ecchi
Studios: Diomedéa
Duration: 23 min
Rating: PG-13 - Teens 13 or older

Izayoi, Asuka, and You have been invited to participate in a Gift-Game at a hot spring village to help the small community there find a new water source.

OVA bundled with the eighth volume of the light novel.