Prologue: Your Place or Mine?

18+ (Timeskip!Matsukawa Issei x OC)

Recently single Y/N (OC's real name is Sayo Matsuri), is a nursery school teacher who lives in Miyagi to pursue her dreams and avoid being in an arranged marriage that her mother keeps insisting on. She meets Matsukawa Issei, one night in her favourite pub. After being challenged to a drinking match, Y/N reveals her relationship failed due to her high sex drive, Matsukawa has his own reasons for his breakup. After a one-night stand, Y/N wakes up feeling refreshed from an amazing night, to an already dressed Matsukawa, who tells her that was the best sex he has ever had. He then hands her a.... marriage registration form!?

"Will you marry me?"

What has Y/N gotten herself into?