Masuda Keima loves to sleep and does not want to work, no matter what. But suddenly, he found himself before a god who was to send him to the other world. Due to not paying attention, he did not receive any cheat skill from the god except auto translation of the world's language. In the other world, he was summoned by Rokuko in the Monster Gacha, and became her Dungeon Master. Now, he has to work as a Dungeon Master to survive. He openly admits to being a leg and foot fetishist, but he tells himself he is not a lolicon. He is 'partners' with Rokuko.