The sight of high school girls with their bras and underwear visible through wet clothes from sweat or rain is truly captivating. When I spotted one by chance on the street and kept staring at her see-through attire, she thought I was suspicious and ran away. However, when I encountered them again later, they turned out to be naughty girls who, though shy at first, willingly showed glimpses of their underwear, revealing their secretly playful nature.