While hiding big thought in a small chest…. A favorite person may change as now; and…The Koto which does not change may not be happy. When it is small, 《 Yuri incense 》 and 《 Kurumi 》 which were unlike a detached room on account of the work of the parent will meet again in Koto entering the same ○ school. Change into a girlfriend by a flow of nature, and two people with the thought that is higher than a friend deepened Ai little by little each other since it was small, but a certain event will change two relations…. A story of the small Ren of girls of such a small chest.