Sex Education From My Oppa's Friend Episode Chronicles & Storyline Arc Timeline

Curated by Global Webtoon Critics • 2026 Masterpiece Index

🏆 Why Sex Education From My Oppa's Friend Ranks at the Top

“Then this? Isn’t this a big deal?” Jae-Jun grumbled at So-Min, who was looking at him with suspicion. “I’m not interested in a brat like you, so don’t worry. No matter what, I wouldn’t touch my friend’s younger sibling.” However, as the night deepened and the alcohol took its toll, he ended up crossing the line that he shouldn’t have. “What’s with the hand? Even middle and high school students hold hands! You graduated from middle and high school. Oh my, this, this isn’t a big deal!” So-Min continued to act tough. Jae-Jun, who was looking at her as if he found her cute, lifted the hand he was holding and brought it to his lips. Then he lightly kissed the back of her hand. There was no time to be surprised by the feeling of her hot lips. His eyes, filled with an unknown heat, stared straight at her face. That’s how the sex education with her brother’s friend began. Jae-Jun put his hand between So-Min’s legs under the pretense of teaching her more. “Have you ever touched yourself with your own hands?” How would the sex education with her foul-tempered brother’s friend end?