runa (ren rainfall), tomioka giyuu, kimetsu no yaiba, highres, 1boy, black hair, black jacket, buttons, closed mouth, demon slayer uniform, empty eyes, haori, holding, holding sword, holding weapon, jacket, japanese clothes, kikkoumon, looking at viewer, low ponytail, male focus, muted color, ponytail, print haori, red haori, sideways, solo, spiked hair, sword, upper body, watermark, weapon, wooden sword