“You are now forever a servant of the pleasure I give.” When I awoke, “I” was transmigrated into Brunehild, the Villainess of a Norse Mythology Otome game. After the engagement was broken and I was condemned in the eyes of the general public, all that was left waiting for me is the route of detention, torture and pleasure inside the dungeon!? My new fiancé who looks at me with a cool face and has tentacles in his control. He was a plain character in the game, but he is the ultimate do S Devil and Yandere.