Shougo has just arrived in town after being ordered to do so, since his grandfather has just died and his parents are busy with work, so they told him to go first. Shougo will be the one to inherit all family assets. Shougo arrives at the residence that will be his new home and receives a great welcome from the beautiful maid Youko-san. A strange event happens at night: he dreams of someone but cannot really tell who it is; all he knows is that her face looks familiar... The next day, he goes to his new school, where his fiancée Ayano introduces him, telling him that it was something their parents decided on their own and that she has not accepted him yet. Shougo is in shock since he didn't know about this, and many people are now jealous and angry at him since Ayano is the school's idol. Not everything is bad, as he receives a very warm welcome from a voluptuous, beautiful teacher. Later, a ghost appears before him; it is the girl he saw in his dream last night. What does this mean? All Shougo knows is that he has seen that girl before, but where?