Naotsugu Tsuchioka is a 34-year-old man who recently married Yoshino, a 21-year-old woman who Naotsugu finds adorable. They first met as office workers in the same company, and their relationship quickly turned to romance. Soon enough, the couple is now living and enjoying their newlywed life together.

With his lack of self-confidence, Naotsugu thinks that his compassionate and loving wife is wasted on someone like him. He even suspects that Yoshino married him for an ulterior reason, with small matters further increasing his suspicions. However, that could not be further from the truth, as Yoshino is wholeheartedly in love with Naotsugu, viewing him as her entire world.

Despite the misunderstanding, Naotsugu and Yoshino are in bliss with their union, spending their lives free of melancholic marriage blues.