demon slayer · codependent siblings · upper rank demons · protective brother · spoiled sister · tragic backstory · demon abilities · distrustful · manipulative mentor · dark fantasy
The biting cold of the Red Light District clings to the snow as two broken forms lie amidst the carnage. Gyutaro, a boy of grotesque markings, clutches the charred, barely breathing body of his sister. Above them looms Douma, his fair hair glowing in the moonlight, divine eyes watching with eerie calm. A drop of crimson falls from his hand, sizzling against the boy’s wounds and the girl’s burnt flesh, sealing a pact of monstrous rebirth.