k 7s, phainon (honkai: star rail), honkai: star rail, honkai (series), highres, 1boy, antenna hair, black sweater, blue eyes, closed mouth, coat, cup, grey hair, hair between eyes, holding, holding cup, jewelry, looking at viewer, male focus, necklace, official alternate costume, open clothes, open coat, open shirt, parted bangs, phainon (luckin coffee) (honkai: star rail), purple coat, shirt, short hair, simple background, smile, solo, sweater, turtleneck, turtleneck sweater, white background, white shirt, yellow pupils