I don't know

Hello guys, could you all please help me find this manhua/ manhwa in which the mc's grandfather dies and he is taken in to be some young master doppelganger but the mc kills the doppelganger and sets on the journey for revenge on the way he finds a human skin book and gains a blonde haired, red robed dressed ghost lady as his familiar who will become his master after many persistent and proving his worth then he undergoes the clan tests in which he gets a lot more ghost familiars too. Mc is said to be pure evil, Killin people left to right. I think it has no romance though. Please help! Σ(＞Д＜)