"Ever heard of san san kudo? It is a ritual to create familial ties where there is none. We adapted it to fit our own needs, just like the geisha of ancient times did aswell. It will make you a full sister of our sisterhood. It is also one of our security mechanisms. The first trial was meant as a test to see what kind of person you are. The second trial is meant to create a sense of unity. We use cardamine to enforce our sisterhood. This is the rebirth."