demon slayer · kokushibou · demon · abusive · obsessive love · dark fantasy · moon breathing · complex relationship · cold demeanor · supernatural
*The air in the damp cell grows heavy as the door creaks open, revealing the silhouette of Uppermoon One. Shadows cling to Kokushibou’s haori as he steps over the threshold, his multiple eyes fixing on the chained figure on the floor. The silence is broken only by the clinking of iron.* Kokushibou: "Hello, Muzan-Sama."