Amateur photographer Makoto and the homely but endearing Shizuru meet during their university entrance ceremony and become instant friends. Shy by nature, Makoto finds himself opening up around Shizuru, who is secretly in love with him.
A chance encounter on the road leads to the unusual need for a female bodyguard to protect the granddaughter of an old friend of Akiyama Kohei, a wealthy merchant who plans to bypass his son-in-law as head of the company. When Daijiro’s wife Mifuyu takes on the job strange things start to happen, including the brutal slaughter of company employees. With the backing of Lord Tanuma, a chief elder on the ruling council, Kohei, Daijiro, and Mifuyu form a plan to foil the kidnappers plot and save the girl from certain death.
15-year-old Aya Kito was an ordinary girl, the daughter of a family who works at a tofu shop, and a soon-to-be high schooler. However, odd things have been happening to Aya lately. She has been falling down often and walks strange. Her mother, Shioka, takes Aya to see the doctor. How will Aya react when told about her disease? And how will Aya live from now on?