Full Dozer Ryouma Muroto secretly has feelings for his childhood friend Mao Manaka, a 15-year-old girl who appears to be a refined beauty on the outside, but she’s actually an impulsive girl who is very persistent once she has made up her mind to do something, which Ryouma likens to a bulldozer. This personality causes others her age to tend to stay away from her, and Ryouma enjoys the fact that he’s basically the only person who can hang around her.