Tidal Warning (해일주의보) by Mattgom (맛곰) and Geurildo (그일도) is currently serializing (연재중) on Naver Webtoon. The romance (로맨스) manhwa has reached a total of 6 episodes, with the first episode free to read.
The story hinges on an unexpected office romance premise: a developer who has made peace with her simple life is suddenly warned by a zodiac forecast about a "tsunami" — and on that very same day, her first love from school reappears as her new team leader, shattering all her plans to move on.
Quick Summary
- Korean title: 해일주의보
- Romanization: Haeril Juuibo
- English title: Tidal Warning
- Literal meaning: "Tidal Warning" / "Tsunami Advisory"
- Format: manhwa/webtoon (Naver serialized comic)
- Creators: Mattgom (맛곰) & Geurildo (그일도)
- Official platform: Naver Webtoon
- Category: 로맨스 (romance)
- Serialization status: 연재중 (ongoing)
- Episode count: total 6, episode 1 free
- Ranking: #2 on Naver Webtoon's new works ranking
- Update schedule: Every Wednesday
- Core premise: office romance + first love + zodiac forecast
- Cover: available (image attached)
Cover of the Ongoing Manhwa
A Romance Serial Currently Running on Naver Webtoon
Tidal Warning is officially listed as a serialized comic on Naver Webtoon under the romance (로맨스) category with ongoing (연재중) status. The Naver Webtoon page confirms a total of 6 episodes at this time.
On accessibility, the first episode is free (1화 무료), while later episodes follow Naver Webtoon's Fast Pass system. The manhwa immediately reached #2 on the new works ranking — a very strong early signal for a title still in its initial serialization phase.
A Sweet Premise: A Developer Ambushed by the "Tsunami" of First Love
The official synopsis on the Naver page opens by introducing the protagonist: Lee Dan-bi (이단비), a third-year developer with a simple life motto — not coveting the world beyond her "well" and being content with what she has. Because of this, she had already resolved to let go of a one-sided love that wasn't worth her anyway.
However, that morning began with a troubling zodiac forecast:
"오늘의 운세 — 한 주의 시작, 갑자기 찾아올 해일을 조심하세요!" — "Today's Fortune — At the start of the week, be careful of a tsunami that comes suddenly!"
On that same day, a new team leader arrived — and it turned out to be her first love from school! And that great "tsunami" struck Dan-bi's modest life head-on.
The main hook: "이해가 안 되네. 내가 아는 이단비는 날 좋아하는데." — "I don't understand. The Lee Dan-bi I knew liked me, didn't she?" The dizzying unfamiliarity of it made her heart start racing like crazy again.
The Cover: Warmth Hiding a Storm
The cover places the female protagonist with an expression conveying sweet confusion — a contrast between a calm life and the emotional "tsunami" about to hit. The warm yet tense visual nuance aligns with a romance genre that relies not only on sweet moments but also on inner conflict and emotional surprises.
The title 해일주의보 is written in a bold yet elegant font, reinforcing the tone of a mature, non-juvenile romance.
Why This Matters
1) An artist from a popular manhwa
Mattgom (맛곰) is the artist behind My Comeback as the Youngest Member (탑아이돌의 막내 멤버가 되었다) — a popular idol manhwa that completed Season 2. This time, they transition to the romance genre in collaboration with writer Geurildo (그일도).
2) "Tsunami" as a clever metaphor
Rather than an actual natural disaster, the title "Tidal Warning" is used as a metaphor for emotional upheaval — a first love returning unexpectedly, destroying years of emotional defenses.
3) Office romance with unique dynamics
Not just a typical office romance — the protagonist is an introverted developer who has already "given up" on her love, while the team leader turns out to be a first love unaware he was ever liked. The "she doesn't know I liked him" dynamic combined with a boss-subordinate relationship creates fresh tension.
4) Zodiac forecast as a storytelling element
The use of daily horoscopes (오늘의 운세) as a story opener and recurring motif adds a unique touch — an element very close to the daily life of Korean and Asian readers in general.
5) Immediately high-ranking from the start
Ranking #2 on Naver Webtoon's new works ranking shows that the combination of a popular artist + a fresh romance premise immediately attracted reader attention.
Manhwa Information
The important details currently known are:
- Tidal Warning is a romance manhwa by Mattgom (맛곰) & Geurildo (그일도)
- serialization is ongoing (연재중) on Naver Webtoon
- a total of 6 episodes so far, with episode 1 free
- ranked #2 on Naver Webtoon's new works ranking
- updates every Wednesday
- the official synopsis introduces developer Lee Dan-bi, surprised by the return of her first love as her new team leader
- Mattgom previously worked on My Comeback as the Youngest Member (탑아이돌의 막내 멤버가 되었다)
- the manhwa can be read via the official Naver Webtoon page
- an English-language reference page exists on MangaUpdates
- official English and Indonesian editions have not been announced
Closing
Tidal Warning (해일주의보) brings the premise of "an introverted developer + a first love returning as a boss + a tsunami forecast" into Naver Webtoon's romance lineup. With popular artist Mattgom behind the art, six early episodes, a free first episode, and a #2 new works ranking, Mattgom & Geurildo's work is a new romance title worth watching.
Details on future episodes and publication outside Korea await further announcements. Meanwhile, the first episode can already be read for free on Naver Webtoon.
