最強鬼王の俺は恋人の弟に転生してしまった!

In a world overrun by spirits, the strongest Wraith King, Draven Burke is betrayed and killed. Ten years later, a fragment of his soul is reborn in 8-year-old Rodley Graham, the younger brother of his former love, Sadie Graham. Everyone sees him as a useless nobody. Now, he must survive family oppression, fend off enemies, and protect his sister while reclaiming his lost power.