The story follows Nasa Yuzaki, a genius-level student who survives a near-fatal truck accident after being saved by a mysterious girl named Tsukasa. Smitten, Nasa confesses his love on the spot, to which Tsukasa agrees to date him—but only if they get married first. Years later, she reappears at his doorstep with marriage papers, and the two begin their lives as a young married couple.
Nasa is often praised for being a "Chad" protagonist—he is honest, decisive, and actively works to make his wife happy rather than being a perpetually nervous or indecisive lead. Tonikaku Kawaii
Unlike most romance anime that end with a confession or marriage, Tonikawa starts with the marriage, focusing on the daily discoveries and intimate growth of a couple already in a committed relationship. The story follows Nasa Yuzaki, a genius-level student
Because the couple is already happily married and essentially perfect for each other, critics on AniDB note that the show can feel "episodic" or "boring" if you are looking for high-stakes drama or intense character development. Nasa is often praised for being a "Chad"