Kaifuku Lotion de Maou wo Taosu Koto ni Natta. ~Isekai Byurubyuru Kouryakuki~回復ローションで魔王を倒すことになった。～異世界びゅるびゅる攻略記～; I Had To Defeat the Demon King Using Recovery Lotion. ~Slippery Isekai Conquest Diary~

One day, high school girl Aira Hagiwara is suddenly reborn in another world as the Great Saint. Aira is excited to be in a fantasy world just like her favorite video game, but the only skill granted to her by the goddess is a strange one: "recovery lotion". Saving the world with lotion(?!) A slimy adventure comedy!