A Secret Lesson With My Younger Sister

여동생이랑 비밀 레슨

Followed by 950 people

Authors: Alien

Artists: Alien

Status:Ongoing

Genres: Mature Romance Drama

Rating: 8.54/10 (313 votes)

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Summary

“I heard you’re really good at sex.” Jinyoung, known among his friends as “Sex Professor,” is actually inexperienced and as single as could be. However, when he’s questioned by his 20-year-old sister, Bom, Jinyoung pretends to be experienced and lies. After that day… Every night, my sister now comes to my room without our parents knowing. This is a problem.

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Chapter List

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Apr 07, 2025

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