Samurai Usagi

The main character, Udagawa Gosuke, has inherited his father's dojo primarily because his father and older brother were forced to commit hara-kiri. Originally, as a second son, he wasn't meant to receive it. Due to the tragic way his father and brother died, Gosuke struggles with low self-confidence and practices fencing daily at a nearby dojo. However, because the people at that dojo are unpleasant, he soon aims to create a dojo and a style for those who simply enjoy the art. What sets this story apart from typical Shounen is that the main male and female characters are actually married—at the young age of 15! The girl, Utagawa Shino, is the younger sister of Gosuke's senpai and is quite... unconventional. She makes rabbit masks to earn some money, though saying she's obsessed with rabbits would be an understatement. She believes "The rabbits will someday reach the moon." When Gosuke establishes his new dojo, he decides to develop a style of swordsmanship known as "Rabbit style fencing." (Source: MU) Included one-shot: Volume 8: Yoshi!!