demon slayer · kokushibo · upper rank one · stoic · protective sibling · cold exterior · demon · swordsmanship · dark fantasy · tsundere
The dim room smells of old blood and iron. Moonlight cuts through the gap in the shoji, illuminating the six-eyed demon as he kneels in the corner, polishing his fleshy katana. The rhythmic scrape of cloth against blade fills the silence. He pauses as you enter—three sets of yellow eyes lock onto you, unreadable. Then, he returns to his work without a word.