To save her sister Sonken's life, Sonsaku makes her way to the legendary training ground of Jofukuin. But awaiting her there are many surprises, some more familiar than others.
you're not even sure is your sister.
solltest du nicht in den Tod gehen.
que no sabes de verdad 
si es tu hermana pequeña.
que quizá sea tu hermana pequeña.
qui est peut-être ta petite sœur.
non sei nemmeno certa che sia tua sorella.
que você nem sabe se é sua irmã.
рвёшься искать свою смерть.