"if only i didn't promise my mother, i would've killed you long ago." - Nishimura Niki

Y/N, a very young student who's living with her aunt and cannot afford to pay maintenance in the House. She works part-time as a waitress. However, in search of her luck she discovered a beautiful Mansion near the woods where they both can live better than their environment. _ Are lies and betrayal behind the mysterious façade of the building, which at first glance looks sinister yet innocent?