birchboat, greyy (arknights), greyy the lightningbearer (arknights), arknights, absurdres, highres, 1boy, animal ears, bdsm, black socks, blindfold, bondage, bound, bound wrists, brown jacket, brown pants, cuffs, dog boy, dog ears, dog tail, goggles, goggles around neck, jacket, laughing, male focus, no shoes, pants, parted lips, removing sock, shackles, short-sleeved jacket, short sleeves, socks, sweatdrop, tail, teeth, tickling, tickling feet, trembling, tube, upper teeth only