The Yuka of the unemployed person Nama was to be taken care of by the family of older brother, Yoshio for the examination for university in Tokyo for one week before examination being over without "calling it Younger Sister". Cohabitation with the Yuka which grew up to mistake it by the reencounter for the first time in five years. Yoshio notices that I begin to be conscious of Yuka as a woman. However, Yuka is real Younger Sister…Were Yoshio who lived while having a complicated state of mind, but the relations of two people greatly change triggered by a certain case….
