The Boy and I Who Will Break Up in 100 Days

When a TV interview about the partnership declaration system goes viral, viewers fall in love with the "adorable" couple Kasuga Yuma and Hasegawa Itsuki. But behind the sweet smiles lies a painful secret: they broke up before the cameras started rolling. Now, with a 100-day documentary series underway, the ex-couple must pretend to be the perfect partners the world adores. Yuma, an advertising designer, pours everything into playing the ideal boyfriend, desperately hoping to rekindle their love. Itsuki, a reserved company president, grows suffocated by the act—and by the unresolved wounds that tore them apart. As the filming crew captures every awkward silence and forced laugh, old tensions resurface, and new feelings begin to blur the line between performance and truth. This poignant Japanese series blends the giddy thrill of a fake-dating reality show with the raw, messy reality of two people learning whether love can survive without expectations. It's a tender, socially conscious exploration of identity, vulnerability, and what it means to be truly seen.