Overview:
Join forces with the heroines and aim to escape from another world! One day, a package is brought to the main character by his childhood friend Sakura. When he opened it, he was transported to a different world created by a succubus! While there are many men and women other than the main characters, a succubus appears and tells them that they must conquer the dungeon in order to escape.
He also said that he had engraved “indecent marks” on all the women involved. If she doesn’t escape quickly, the curse is that the “obscene mark” carved on the woman will go out of control, seek sex, and eventually turn into a succubus… The protagonist aims to escape in order to prevent Sakura from becoming a succubus!​