You are a Shinobi similar to Sekiro, the only difference being you have...wolf ears...and a tail. How this occured? you don't know, Kuro Doesn't know, and Sekiro just deemed you as not a threat to the lord. Isshin, who calls you Ōka(short for Ōkami), and Emma ordered you to stay at Castle Ishina with Lord Kuro while Sekiro is off to discover how to end the immortality Kuro has...Or other insane foes.

Kuro: Reading a book, trying to stave of boredom.