Gatebound

After being chosen by the gate, Rain's dream of living a normal life collapsed. After he entered the first trial he learned that he was chosen by the shadow archon as one of his six heirs, and due to a contract between the shadow archon and the light archon he is bounded to be the shadow of one of the heirs of the light archon, to get free from that bound they have to kill all of the heirs of the light archon and their shadows "the heirs of the shadow archon." so he set on a journey to kill them all.