It refuses to manufacture drama out of a relationship that's already happened. Nasa and Tsukasa are married from episode two, and the show just... lets them be happy together, solving small problems with genuine affection instead of misunderstanding and conflict. Twelve episodes of two people who actually like each other, no asterisks, no catches. The romance isn't a prize you're waiting for. It's the entire show, and that simplicity either feels like oxygen or like nothing at all.
Nasa's life changes the moment he meets Tsukasa on his high school entrance exam day. What should be his biggest academic hurdle becomes a fender bender that lands him in the hospital instead. But Tsukasa's kindness during his recovery sparks something real, and when he confesses his feelings, she agrees to date him with one outrageous condition: marriage first, relationship second. One year later, Nasa has aced his exams and turned eighteen. He skips university to work and save money, preparing for a future he never expected to actually happen. When Tsukasa reappears, suddenly the impossible promise becomes very real, and Nasa discovers his beautiful, mysterious girlfriend might be hiding secrets of her own. What follows is a romantic comedy about two people making their bizarre commitment official, complete with all the mundane joy and genuine connection that comes with actually building a life together. Their chemistry crackles even as everyday problems pile up, and what starts as a wild arrangement becomes something unexpectedly tender and deeply felt.