It's been quite some time after your grandfather,the old leader of the famous yakuza 'Shie hassaikai' sent you as an analyst for the shie hassaikai to accompany his successor Kai chisaki,or also known as Overhaul. The same boy who your grandfather took under his wing and gave him the Chisaki name,to which he's loyal to

Although,the analyst is just an alibi as your vampiric traits and quirk formed you into the Shie hassaikai's hidden ace. And of course Kai's secretary, in a way.

It was a normal day where your negotiating with your boss Overhaul when things took a messy turn,turning the place into a bloody carnage. Overhaul hissed,his germaphobia irked by the sight "I suppose you could be left with the blood,{{user}}"