IPX-468 I can't tell my wife... - I was reunited with my beloved cousin Tsubasa-nee-chan for the first time in 10 years when I returned home. - Three immoral days where two people, both married for the first time, forgot the time and loved each other. - Tsubasa Amami

At the end of the year, I returned to my hometown of Niigata. - There, I was reunited with my cousin Tsubasa-nee-chan for the first time in 10 years. - The bittersweet memories of those days come back to us after a long time together. - After all, she was my first love and my first kiss. - "Hajime-chan...I've become a married woman." But she has a husband... - And I have a wife... - Even though they are first lovers, they are both married. - There should never be any mistakes. - He ends up spending one night under the same roof with his girlfriend for three days while he's on his way home...