Ii Otona Datte Seishun Rabukome ga shitai!

Rio Shibata and Ayato Sunazuka have been together since kindergarten through high school. Both of them have had feelings for each other since childhood, but they were too stubborn to confess their feelings to each other even after they reached high school! And even after a few years of working, they still like each other even though they are still "dogs and monkeys" The "Adult Youth Romantic Comedy" starts with a very long and complicated, too much trouble.