In exchange for a letter of recommendation to the art museum, Mao is asked to model for her professor's painting. Persuaded that it is for the sake of art, she hesitantly takes off her clothes. Lewd poses, modeling completely naked in front of her classmates. Mao is confused by the increasingly extreme demands, but her shame at having every inch of her body viewed and sketched soon turns to excitement. "Teacher, I'm embarrassed... Ah, everyone is watching us...!" The innocent female art school student shakes her big breasts and cums, leaking juices.