During a barbecue with Jun-Ho, Ha-Rin, and Soo-Ah, Ha-Rin secretly rubbed Jun-Ho's crotch with her socked foot, causing him to react. Soo-Ah noticed his strange expression and said she was going to the restroom. Once she was gone, Jun-Ho scolded Ha-Rin, but she immediately pulled out his cock and started giving him a blowjob. He worried that Soo-Ah would hear them even with the door closed. When Soo-Ah returned, Ha-Rin quickly moved to block her view, pretending she needed to use the restroom herself to give Jun-Ho time to zip up his pants. Jun-Ho realized it was a close call and that he needed to have a serious word with Ha-Rin.
Later, while Jun-Ho was talking with Soo-Ah, she suddenly kissed him. Ha-Rin saw them kissing, and Soo-Ah immediately ran away from the scene.
Jun-ho was at home while beef soup was being made for dinner when he received a tempting message from Ha-Rin. She invited him to the academy, offering to treat him to meat if he was free. Though skeptical of her true intentions, Jun-ho couldn't resist the lure of free meat and agreed to meet.
When he got to the academy, she tried to get him into the director's office with a weak excuse about warming up, and he immediately called her out, saying, "There's all that space over there, and you want to warm up in here?" When he pushed for the barbecue, she kissed him instead. This led to a blunt conversation where he asked if she was just a convenient hole and, surprisingly, suggested they try a real relationship. She admitted this was all she knew, so they decided to practice dating.
Their awkward role-play quickly fell apart, and Ha-Rin dropped the act completely, revealing she was the director. She then told him, "Down there, just rip it apart. I don't care. Throw it anywhere, tear it up, and shove your cock right in." They had sex in the Ballerina position, then switched to doggy style on the sofa. The thought of having never done it in the office, the same place where she counsels students, was driving her insane. He pulled his cock out and came on her back, just to be safe, then fell asleep, thinking he was so exhausted from all the sex he'd been having with Sang Hee that he passed out the first chance he got.
While cleaning a building, Jun-Ho saw Ha-Rin spill coffee on a doorbell camera. He accidentally rang the bell, and she opened the door, pulling him inside and kissing him. She said she couldn't stop thinking about him and had been holding back, realizing she had deliberately thrown coffee on the doorbell camera to get his attention. He initially rejected her, calling her desperate and saying he was only there to clean, but felt guilty when she got upset and agreed to help her.
He confirmed, "I just need to fuck you?" and she spread herself for him. After a short time, he questioned why she was so desperate when she could have any guy, and she said she wanted him specifically because "the way you do it makes me feel good." Happy with this, he gave her what she wanted, kissing her as he creampie her. Back in the moment, he wondered if she was after something, attributing her enjoyment to his skill as a "sex genius." She began performing oral sex on him again, making him hard, and led him to the bedroom where he repeatedly hit her sensitive spot. He asked why she held back if she was enjoying it, then made her orgasm and creampie her a second time.
He asked why she waited for him instead of hooking up with someone else. She explained that she had terrible taste in men who only wanted to "fuck a hole, not a real girlfriend." She said, "You are different. You are relentlessly trying to find my sweet spot, and when I was close, you went in." He replied, "When doing both, it feels good."
After Ha-Rin's ex left, she noticed Jun-Ho watching her. While putting on her leggings, she slipped, but Jun-Ho caught her, preventing her from hitting her head. She ended up in his lap, and he got an erection. She asked if he wanted to have sex with her, as her ex had left her unsatisfied. Jun-Ho apologized, saying he couldn't because he needed to clean and didn't feel right having sex with someone he'd just met.
Ha-Rin pulled down his pants to suck his cock, but he pushed her away, which made her cry and say she wanted to cum. Facing a dilemma, he asked if she couldn't go back on her offer, then had sex with her in standing doggy style and finished inside her. He tried to leave, but she secretly grabbed his phone, unlocked it with his face, and saved her contact information. She told him that many people enjoyed being with her and that she wanted to be with him too. He then gave her his room number before she left.
On a rooftop early in the morning, Ha-Rin Park and her ex were having sex. Jun-Ho, who had gone to the roof to clean, hid and watched them. Her ex creampie her and then left. As he was leaving, he saw Jun-Ho standing there and then departed. Jun-Ho peeked and saw Ha-Rin bent over, with cum dripping from her pussy.