Yui follows her father's orders and arrives at a mysterious mansion as the address had suggested. Yui instead is given a certain address by her father and instructed to go there, saying the people living there are 'relatives'.
In her second year of high school, Yui's father, a priest, has to move to overseas due to work and she is not allowed to accompany him. The heroine, Yui Komori is a positive-thinking girl who nevertheless is troubled by seeing spirits and experiencing poltergeist phenomena.
