Yongjun stayed at his friend's house for a few days during the university vacation. I'm surprised by my friend's mother Jung-sook's young face and excellent body after returning from work. I'm not supposed to think about this to my friend's mom...Even though he hesitates, he sees the underwear that Jung-sook left in the bathroom for a while and touches it without realizing it. As soon as I touched the bra that still has warmth, Yong-jun is obsessed with the impulsive thought of wanting to smell it... "Wake up, a married woman, not anyone else. That's a friend's mother...!”