Teisou Gyakuten Sekai de Tanomeba Yareru to Uwasa no Ore

I, Sora Satou, woke up to find myself transported to what they call a "reverse chastity world." Although I was confused at first, little by little I adapted to this new world's values and eventually ended up working at a supermarket across from an all-girls high school. Just when I had finally gotten used to life as an employee under the kind and beautiful manager, a rumor started spreading: "That male employee... they say if you ask him, he'll let you do it." And so, a group of beautiful girls who took that rumor literally began to gather around me... (Source: Kadokawa, translated)