My Sister’s Duty

Explore the captivating world of My Sister’s Duty, a captivating manga that masterfully blends Adult, Drama, Mature, Psychological, Romance, Tragedy. Created by the talented 얼룩. Experience this thrilling series for free at MangaSSS, where you’ll find a rich collection of manga to explore. With 109 chapters translated into English and more on the horizon, there's never been a better time to start your adventure. Be the first to know—create an account today, bookmark My Sister’s Duty and never miss an update!

.Dongwoo, who happened to found the secret of his squad leader is spending a hellish day because of it. Jungyeon, the younger sister found out about her brother's suffering through his diary. To protect her brother whom she loves more than anyone else, Jungyeon visits Yoo Jinho, the squad leader "Oppa I'll protect you this time."