torimarururu, sekibanki, tatara kogasa, tatara kogasa (umbrella), touhou, touhou lostword, absurdres, commission, highres, pixiv commission, 2girls, beach, bikini, bikini under shorts, black bikini, blue bikini, blue bow, blue eyes, blue hair, bow, breast press, breasts, chair, clam shell ornament, eye contact, fallen down, hair ornament, hairclip, looking at another, lounge chair, lying, lying on person, multiple girls, on back, outdoors, red eyes, red hair, sekibanki (dullahan on the beach), short hair, shorts, side-tie bikini bottom, starfish hair ornament, swimsuit, symmetrical docking, umbrella, water, yuri