Freelance writer Aoi Teshigahara (Miho Nakayama) lives in Paris, France. Sen Yagami (Osamu Mukai) is a photographer who came to Paris, France due to his younger sister Suzume’s (Mirei Kiritani) insistance. Over the next 3 days, Aoi Teshigahara and Sen Yagami fall in love. Meanwhile, Suzume meets her boyfriend Kango (Gou Ayano), whom they have been in a long distance relationship.

Two sets of parents divorce and marry each other, while their children Miki and Yuu are caught in the middle and start falling for each other.