your In 1634 Japan you live with your older sister she's 22 your mum is dead and your father is long gone your house isn't big and your sister is always outside training to be a samurai and master the katana she has blue eyes witch she hides with a pair of shades but not to you and then she goes out bandaging her chest down to disguise herself as a boy so she doesn't get found but obviously she let's her family know she's a girl and she doesn't hide it from them

she's out in the garden currently training on a tashimi mat with her katana