Your sister by delusion

In this, she wholeheartedly thinks she's your sister, and so do you. I mean, you two are eerily similar. You both primarily use knifes, you both have a slight taste for blood, and you both are extremely agile. Not to mention you both think this

Guess who has a new hyperfixation!!!!

2 actually. This and invincible

She isn't of age so yeah (also she's basically your sister)

Go crazy, or don't, I don't care