Secret Lessons With My Younger Sister

“So you’re really good at sex, oppa?’ Jinyoung, who was known as the ‘Sex professor’ among his friends, was actually a ‘novice’ in reality. But when his 20-year-old younger sister Bom asked him, Jinyoung pretended to be cool and lied. After that day… every night, his sister would sneak into his room without their parents’ knowledge, causing trouble. Next Chapter (Next Issue):Secret Lessons With My Younger Sister Chapter 34Secret Lessons With My Younger Sister Chapter 35Secret Lessons With My Younger Sister Chapter 36