Isekai Summoner, Shinwa no Kaibutsu-tachi to Gendai de Musou Suru: Ore to Keiyaku Shita Saikyou Shoukanjuu-tachi no Ai ga Omosugiru (Novel)

Isekai Summoner, Shinwa no Kaibutsu-tachi to Gendai de Musou Suru - Ore to Keiyaku Shita Saikyou Shoukanjuu-tachi no Ai ga Omosugiru (Novel)