1girl, absurdres, arknights, arms_behind_back, artist_collaboration, bad_id, bad_pixiv_id, barefoot, baseball_cap, bdsm, bikini, bikini_top_only, blue_hair, bondage, bound, ch'en_(arknights), chen_zi, cleave_gag, cloth_gag, collarbone, commission, crotch_rope, dragon_horns, dragon_tail, female_tourist_c_(arknights), frogtie, gag, gag_around_neck, gagged, hat, highres, horns, improvised_gag, kneeling, official_alternate_costume, poolside, red_eyes, restrained, rope, shinebell, short_shorts, shorts, solo, swimsuit, tail, unworn_gag, variant_set, water