Una pareja de cucos, 2

Nagi and Erika, mistakenly swapped at birth, have ended up engaged and living together on their parents' recommendation! Nagi becomes depressed after learning that Hiro Segawa, with whom he is in love, is also engaged, but thanks to an unexpected hobby, they quickly become friends. It begins what will be for him the best of his school life... Or so he thought, because that's when Erika changes to her high school!