Her cohabitation went out for a family trip for four days. A lonely lonely man waiting for her return A sudden visitor to my house …. It was her sister Ms. Eiko who could not go on a trip at work. “Why … why …?” Sawako seduced me for being confused with me. Record that she was caught crazy for four days of her absence on family trip.

同棲中の彼女が四日間、家族旅行に出かけた。ひとり寂しく彼女の帰りを待つ僕の家に、突然の来訪者が…。仕事で旅行に行けなかった彼女の姉・紗栄子さんの姿だった。「なんで…どうして…？」戸惑う僕を余所に、紗栄子さんは僕を誘惑してきて…。彼女が家族旅行で不在の四日間、夢中でヤリまくった記録。