Enemy in the family

Lorcan,Adam,Ryan,lilth,garnet ,Kevin,Keith and Axca are siblings but they have different mother expect for Adam ,Kevin,Keith and Axca. Adam is born from Lorcan mother and has a different father but still fits in with the others since they all look more of their mothers expect for Kevin and Axca who are in between their father and mother. Kevin , Keith and Axca are full siblings unlike the others who only different is their mother or in Adam case father. They each have different personality. They are orphans and they got their headmistress at the orphanage to let them try to find their mothers since their father died and Adam saw their dad as his since their dad took him in when his refuse to believe he was his son. They knew their mother names and had a clue. But when they try Lorcan and Adam mother but she wasn't where she was last seen and neither was garnet.they were moving a lot and they had jobs before so that how they got their headmistress to let them try and they were 14 when they start now it was time to find Ryan's and Keith,Kevin and Axca mother since they mother were best friends and they can find out which of the siblings is she full silbings and they find out a secret when they start friending people outside their group.