1girl, d, ;d, ahoge, arm_up, armpits, beach, bikini, blue_archive, blue_eyes, blush, caustics, day, eyewear_on_head, fang, feet_out_of_frame, foot_out_of_frame, frilled_bikini, frills, goggles, goggles_on_head, horizon, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), lilithmy, long_hair, looking_at_viewer, navel, ocean, official_alternate_costume, one_eye_closed, open_mouth, outdoors, pink_hair, pool, poolside, shading_eyes, smile, soaking_feet, solo, stomach, sunglasses, swimsuit, thigh_gap, twintails, very_long_hair, water, waves, white_bikini