My Sister's Duty 
Login to add items to your list, keep track of your progress, and rate series!
Description
Dongwoo, who happened to found the secret of his squad leader is spending a hellish day because of it. Jeongyeon, the younger sister found out about her brother’s suffering through his diary. To protect her brother whom she loves more than anyone else, Jeongyeon visits Yoo Jinho, the squad leader… “Oppa… I’ll protect you this time.”
Type
Manhwa
Related Series
N/A
Associated Names
Brother's Duty
Sister Duty
妹妹的义务
동생의 의무
Groups Scanlating
Latest Release(s)
c.110-111 by THE BLANK 3 years ago
c.108-109 by THE BLANK 3 years ago
c.106-107 by THE BLANK 3 years ago
Search for all releases of this seriesStatus in Country of Origin
110 Chapters + Epilogue (Complete)
Completely Scanlated?
Yes
Anime Start/End Chapter
N/A
User Reviews
N/A
Forum
0 topics, 0 posts
Click here to view the forumUser Rating
Average: 5.2 / 10.0 (33 votes)
Bayesian Average: 5.69 / 10.0
10
12%
9+
3%
8+
6%
7+
15%
6+
6%
5+
18%
4+
3%
3+
9%
2+
6%
1+
21%
Last Updated
November 29th, 2025 12:57am PST - 3 weeks ago
Image [Report Inappropriate Content]
Genre
Categories
Category Recommendations
Recommendations
N/A
Author(s)
Artist(s)
Year
Original Publisher
Serialized In (magazine)
N/A
Licensed (in English)
No
English Publisher
N/A
Activity Stats (vs. other series)
Weekly Pos #810 
(+22)
(+22)Monthly Pos #1661 
(-129)
(-129)3 Month Pos #3132 (-182)
(-182)6 Month Pos #3677 (-644)
(-644)Year Pos #4465 (-966)
(-966)List Stats
Note: You must be logged in to update information on this page.
Forum Posts Click to view the forum
