Because of not being used to urban life, Naoto decided to visit his home in a countryside on the occasion of Obon. Here he met his cousin Tsumugi, whom he secretly loved since childhood. It turned out that Tsumugi's husband had an affair, so she left home.IPZZ-503 Fuck her beautiful cousin when she returned home She was even more beautiful than before, her slender body, sweating, attractive scent that made Naoto seem to have dementia that made a story beyond the limit. Although this is wrong, but perhaps feeling lonely due to being betrayed by her husband, probably because of feeling Naoto's feelings, Tsumugi gradually accepted him ...