The honeymoon episodes exist to let you breathe after five seasons of romantic warfare. Futarou and Yotsuba finally get to just be a couple, and the show fills that space with the five sisters doing what they do best, being unbearably cute together. It's fan service in the purest sense: not fanservice, just service to the fans who stuck around.

Fuutarou once tutored five quintuplets who were close to failing and disliked studying, and he saw them all the way through to graduation. Since then the sisters have gone their own ways and reached their goals, though one of them appears to be weighed down by something. Now Fuutarou and the quintuplets are getting ready for a honeymoon in Hawaii. Plans move along smoothly until an incident surfaces and throws everything into an uproar, and once they arrive, more trouble finds them. The two-episode romantic comedy special comes from Negi Haruba's manga, with Haruba supplying the original idea and overseeing the production. It screened in Japanese theaters before airing on TV.