After four years of marriage, An-san and her husband have settled down, but she is starting to feel a little unsatisfied. As she fantasizes about the students who visit her violin class where she works, she begins to feel that things might be too late if she continues like this... She decides to appear in an adult video as a way to release her overflowing sexual desire. At first, An-san is confused by this unknown world, but once it starts, she shyly bites the cock and devours the pleasure with rapt abandon.