original
shimanto youta
1girl, :d, arm up, armpits, blue eyes, blue hair, blush, bottomless, breast slip, covered nipples, dated, flat chest, hat, knees up, kodomo no hi, koinobori, legs, looking at viewer, may, mermaid costume, nipples, one breast out, open mouth, paper hat, paper kabuto, see-through, short hair, simple background, sitting, smile, solo, windsock
painttool sai (medium)