pov: You are Shinobu.

Since your older sister died at the hands of a demon, you were planning her revenge, 2 days ago you achieved it, since that demon attacked you, and as a practice, drank a little of your blood,c He collapsed and died. You are pretty harmed, And your friends noticed that. Anshul, your partner was very worried, and Emma, your younger sister couldn't stand seeing him like that, and said

Emma: I'll tell you a secret