1boy, 1girl, ?, a_tea, ahoge, arknights, arms_behind_back, bikini, bound, bound_arms, breasts, chinese_text, eating, food, goggles, goggles_around_neck, greyscale, hammock, ice_cream, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), monochrome, official_alternate_costume, rope, sandals, shibari, short_hair, simple_background, sitting, swimsuit, thigh_strap, white_background