My Sin (나의 죄) by Jellyfish (젤리피쉬) as story writer and ttogak (또각) as illustrator is currently serializing as a 신작 (new work) on Naver Webtoon. The occult fantasy / thriller / horror webtoon carries a 15+ (15세 이용가) age rating and has reached a total of 6 episodes, updating every Thursday (목요일).
The story centers on a haunting psychological horror premise: a mother named So-young manages to save her eldest daughter, Nari, in a tragic accident but loses the baby she was carrying — and after the accident, 8-year-old Nari begins imitating her dead younger sibling, forcing the mother to confront a terrible feeling no mother should ever harbor.
Quick Summary
- Korean title: 나의 죄
- Romanization: Naui Joe
- English title: My Sin
- Literal meaning: "My Sin"
- Format: manhwa/webtoon (Naver serialized comic)
- Story writer (글): Jellyfish (젤리피쉬)
- Illustrator (그림): ttogak (또각)
- Official platform: Naver Webtoon
- Genre tags: #오컬트판타지 (Occult/Fantasy), #가족 (Family), #드라마 (Drama), #스릴러 (Thriller), #공포 (Horror)
- Age rating: 15세 이용가 (15+)
- Serialization status: 신작 (new work), ongoing
- Update schedule: Every Thursday (목요일)
- Episode count: total 6
- Reader rating: ★9.28 (from 319 participants)
- Core premise: mother-daughter occult thriller + trauma vs. supernatural
- Cover: available (image attached)
Cover of the Ongoing Webtoon
A 15+ 신작 Updating Every Thursday on Naver
My Sin is officially listed as a 신작 (new work) on Naver Webtoon with an update schedule every Thursday (목요일) and a 15세 이용가 age marker, signaling dark, horror, and psychologically heavy content. The series list page confirms a total of 6 episodes at this time.
On accessibility, the Chapter 1 page displays 5 preview panels (미리보기) accessible on web, while up to 5 latest chapters are available for free in the Naver Webtoon app. The Naver Webtoon weekly schedule page also lists My Sin as one of the 신작 titles in the Thursday slot.
A Haunting Premise: An Accident, a Loss, and a Child Who "Returns"
The official synopsis on the Naver Webtoon page opens with a key line: "사고로 첫째 딸 나리를 구하고 뱃속의 아이를 잃은 소영" — So-young saves her eldest daughter Nari in an accident but loses the baby she was carrying. There is no explicit supernatural explanation at the start; only loss and trauma.
Then comes the main hook: "사고 이후, 여덟 살 나리는 죽은 동생 흉내를 내기 시작한다" — after the accident, 8-year-old Nari begins imitating her dead younger sibling. The haunting question follows: "트라우마로 인한 퇴행일까, 정말 죽은 아이가 딸의 몸을 빌린 걸까" — is this regression from trauma, or has the dead child truly borrowed her daughter's body?
And the peak of horror: "딸을 의심할수록 엄마라면 절대 품어선 안 될 자신의 끔찍한 마음과 마주한다" — the more she suspects her own daughter, the more she is forced to confront a terrible feeling no mother should ever hold.
Why This Matters
1) An occult thriller with a mother's inner conflict at its core
This is not ordinary jumpscare horror but a psychological war of a mother forced to suspect her own child — a premise that is extremely rare and dark for mainstream webtoons.
2) A grey area between trauma and the supernatural
The story deliberately withholds a definitive answer: is Nari experiencing psychological regression from trauma, or is there truly a supernatural entity borrowing her body? This ambiguity fuels the central tension.
3) Genre tags that promise depth
With the combination of #오컬트판타지 #가족 #드라마 #스릴러 #공포, this webtoon promises a blend of occult horror, family drama, and psychological thriller in one package.
4) High rating from the 신작 phase
A ★9.28 rating from 319 participants for a title with only 6 episodes is a very strong early signal — Naver readers are responding positively from the very first weeks.
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Webtoon Information
The important details currently known are:
- My Sin is an occult thriller webtoon by Jellyfish (젤리피쉬, story) & ttogak (또각, art)
- serialization status is 신작/ongoing (new work/serializing) on Naver Webtoon
- updates every Thursday (목요일)
- a total of 6 episodes so far
- a 15+ age rating due to dark/horror content
- a ★9.28 reader rating from 319 participants
- tags: #오컬트판타지 #가족 #드라마 #스릴러 #공포
- the official synopsis introduces a tragic accident, Nari imitating her dead sibling, and the mother's inner conflict
- Chapter 1 is accessible with 5 preview panels on web, or up to 5 free chapters in the Naver Webtoon app
- the webtoon can be read via the official Naver Webtoon page (mobile) and the Naver Webtoon series page (PC)
- Chapter 1 can be accessed directly at the episode detail page
- the title is listed as a 신작 on the Naver Webtoon Thursday schedule page
- official English and Indonesian editions have not been announced
Closing
My Sin (나의 죄) brings the premise of "a mother suspecting her own daughter amid the ambiguity of trauma and the supernatural" into Naver Webtoon's 15+ occult thriller lineup. With 신작 status, six early episodes, weekly Thursday updates, and a ★9.28 rating, Jellyfish & ttogak's work is a new psychological horror title worth watching.
Details on future episodes and publication outside Korea await further announcements. Meanwhile, Chapter 1 is already accessible on Naver Webtoon.
