A week of intercourse with a four-year-old girl named Yutan

Do you know that there is a thing called "background folklore free information center"? Of course, it's the back of the street, but there is no way to see him in town. It is in the form of a full introduction system and secret strict observance, and its actual condition is hardly known. All of the women in this group are active girls. Now, this time it is a story of Tan attending the mission-related school to be in such an information center.