A ghost that is different from other ghosts accidentally takes over the soul of a mortal and cannot live in his place until the end of his life. The little ghost meets a person in this mortal's body and life who is enough to make him give up everything. The two of them finally overcame all kinds of difficulties. Just when they had just made up their minds to keep going, they received an uninvited guest. This uninvited guest revealed the reason why this ghost was different from other ghosts at the beginning of the story... One by one, the incredible stories made the two people's relationship deeper and deeper, so much so that they were willing to gamble their lives for each other...