Genso Shoujo Hifuku Club (Touhou dj)

To spread the urban legend of the Secret Club, two girls disguise themselves as Renko and Merry every night.

In an attempt to bring into existence an entity that was never meant to exist, the two girls have taken up residence in the clothing club room of an old school building!

However, as they continue their activities, the boundary between themselves and their roles gradually begins to waver, and finally Mary's condition...?