Mysterious Disappearances

Sumireko Ogawa is an employee at the Librairie aux Big Tits who wants to become a novelist after a certain success in her youth. When strange events are starting to arise in the city, she joined forces with her Coquette Ren Adashino colleague to examine them. But Renovable his own secret! With their skills combined with occult knowledge, what will they discover when they investigate?