I was Transported to Another World, and Now I Have to Draw a Gacha Every Time I Have Sex!: Hold On, My Stamina!

Ken, who was transported to another world after starting a game on a whim after work one night, is suddenly ordered by a goddess to prevent the appearance of the Demon King, and is given a cheat skill: "You can draw a gacha every time you have sex." Can he use this mysterious power to save the world!?