hki 8b, caelus (honkai: star rail), caelus (world tour 2023) (honkai: star rail), nanook (honkai: star rail), trailblazer (honkai: star rail), honkai: star rail, honkai (series), highres, 1boy, 1other, ahoge, alternate costume, belt, braid, closed eyes, closed mouth, collarbone, collared shirt, couch, dark skin, detached collar, english text, eyes visible through hair, feet out of frame, fingernails, from behind, greyscale, hair between eyes, hair ornament, hair tubes, half-closed eyes, hand on another's chest, hood, hoodie, jacket, lapels, long hair, long sleeves, looking at another, looking down, looking up, lying, monochrome, multiple braids, multiple views, nervous, nervous smile, nervous sweating, official alternate costume, on back, on couch, on lap, open clothes, open jacket, open mouth, other with male, pants, puffy long sleeves, puffy sleeves, sarashi, scar, scar on face, shirt, shoes, short hair, simple background, sitting, sleeping, smile, speech bubble, spread legs, sweat, wing collar, wristband