Spiritpact

You Keika, the last living member of a once prestigious exorcist family, inks out a living as a fortune teller and computer repairman. One day, he witnesses a silver-haired man fighting with an evil spirit. Bewildered by the unrealistic sight, Keika is unable to stay in hiding. On his way home after this encounter, Keika loses his life in a fatal accident and finds himself face to face with the mysterious man from earlier that evening. Calling himself, Tanmoku Ki, the man requests that Keika become his "spirit shadow". Keika initially refuses this request but finds himself pulled into Tanmoku's fight with the little girl spirit...

Tanmoku Ki brings You Keika along with him to the airport to pick up his beautiful fiancee named Shin Shiyou. The men drop off Shiyou at a nearby hotel but Tanmoku sends Keika up to give her a message. Keika discovers that Shiyou is not all she appears to be. She's been hiding a part of herself from Tanmoku and an evil spirit uses that weakness to take advantage of her. With Tanmoku unable to rescue them, it's up to Keika and Shiyou to figure their way out of the spirit dimension. Can they do it before Shiyou is overcome by the darkness in her heart?

Tanmoku Ki returns to his family home for the first time since making a pact with his new spirit shadow, You Keika. However, aside from Tanmoku's grandmother, who welcomes Keika with happy tears, the welcoming mood in the sprawling mansion is noticeably stiff. Keika learns that there is a complicated relationship amoung the members of the Tanmoku family and even their retainers. Meanwhile, a mysterious man and woman appear and corner Keika. What on earth could their goal be?

One morning, at the end of one of their usual arguments, You Keika learns about the life and death relationship between a Youmeishi and their spirit shadow, as well as the weaknesses of this from Tanmoku Ki. Along the way, Keika learns about the Tanmoku family's treasured sword (the Rakugetsu sword) as it is being taken to the family mausoleum in preparation for the pledging ceremony. He then finds himself under attack by Shito Ritsu who bears a strong grudge against Tanmoku Ki. When he soul is about to be broken apart Keika reaches out for the sacred sword...

A ritual ceremony is carried out, which is the most important duty of a Youmeishi. As the ritual is solemnly progressing, members of the Shito family appear and bring their suspicions to Tanmoku Ki. Upon hearing all this, Ki turns the blade of the Rakugetsu sword on Keika. Will Ki choose the alliance of his family with the Shito family over Keika? After the ceremony, life at the Tanmoku mansion returns to normal. Troubled by the very "my pace" attitude with which Ki lives his life, Keika learns that there is more to the stone-faced young man than meets the eye.

It is the seventh day since You Keika lost his life. When Ki and Keika are summoned to the city where Keika used to live they encounter a married couple that Keika was close with mourning him in a memorial service. Upon seeing this, Keika realizes that he is indeed missed by someone and once again finds himself confronted by his death and the emotions he had been restraining come bubbling to the surface. In the car on the way home, in attempt to comfort him, Ki tells Keika that from now on he is his family. However, Keika is plagued by strange dreams and finds his consciousness suddenly being taken over.