In Fujisawa, Sakuta Azusagawa is in his second year of high school. Blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted by the appearance of his first crush, Shoko Makinohara.

When five lovely young girls who hate studying hire part-time tutor Futaro, he guides not only their education but also their hearts. Time spent has brought them all closer, with feelings growing within the girls and Futaro. As they finish their third year of high school and their last school festival approaches, they set their sights on what’s next. Is there a future with one of them and Futaro?

We bring you the daily lives of Futaro and the quintuplets as adults! Futaro, who successfully guided the academically struggling and study-averse quintuplets as their part-time tutor until their "graduation." Though each achieved their dreams and walked their own paths, it seems they each carry some worries... Amidst this, Futaro and the quintuplets plan a Hawaii trip doubling as their honeymoon. Just as preparations were going smoothly, an incident occurred, causing a great panic! And even in Hawaii, their honeymoon destination, they find themselves caught up in troubles...!? A 500% adorable quintuplet romantic comedy, the honeymoon edition──!!

Featuring stories from the manga not adapted in the main anime.