According to Amazon Japan, a two-volume OVA series "ToHeart 2 Dungeon Travelers" was announced. "ToHeart 2 Dungeon Travelers" is an RPG game on PlayStaion Portable released in 2011.
Genres: Adventure, Comedy, Ecchi, Fantasy
Watch ToHeart2: Dungeon Travelers episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.