The Letter

In the outskirts of Luxbourne City stands a 17th-century English mansion, rumored to be haunted by vengeful spirits. After reading a letter discovered inside on the day of its open house, seven people find themselves trapped in a vicious cycle of madness plaguing the Ermengarde Mansion for centuries. Will they be able to free themselves from it, or will they become another casualty?

See also:

Root Letter Starless Moon. Wind -A Breath of Heart- Ever 17: The Out of Infinity Flowers -Le Volume sur Printemps-