Story about a mysterious box that has been passed down in the Hachisuka family for generations - "Kotoribako". The Hachisuka family held a unique ritual to quell the disaster brought about by the box. Without being informed of his role, Saba moves to the main house due to family duties, and gradually strange things begin to occur... <blockquote></blockquote> <b>Characters:</b> * Sojiro Hachisuka (28 years old) - a former homeroom teacher at Saba's high school. After graduating from university, he moved to his family home due to his new job. There, he senses the possibility that he and Saba are involved in the existence of "Kotoribako" and begins to investigate. * Haruhi Saba (18 years old) - daughter of the Hachisuka family. Her parents died when she was young, she was taken in by Sojiro's parents. As a member of the Hachisuka family, she moved to the main family home at the age of 18. She's been in love with Sojiro since she was little.