My Younger Sister Was A Genius summary: You are reading My Younger Sister Was a Genius manga, one of the most popular manga covering in Drama, Fantasy, Manhwa, Manhwa, Romance, Shoujo, Slice of life genres, written by at MangaBuddy, a top manga site to offering for free. My Younger Sister Was a Genius has 58 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add My Younger Sister Was a Genius to your bookmark. Read manhwa My Younger Sister Was a Genius / Yoon Hajoon, who struggled to pursue his musical career despite his iffy talents and ended up sacrificing his own family along the way, " If only I could turn back time! " One day, after living with regrets and alcohol for a while, he woke up and found himself had returned to the past. Just then, it dawned on him. The fact that my younger sister is a musical genius! Now is the time to turn my life around, that is by producing my younger sister into becoming the best singer!