On the beautiful Jeju Island, Mi-Ho Won, a beautiful teacher, and Van, a cold and mysterious guy, become entangled in strange events, fighting unknown monsters. A legend of exorcism comics is back as webtoon! (Source: Naver, translated) Note: Includes 1 extra chapter.

“I’ll offer you 50 million won for every demon you hunt down.”
 
 Jeju Island is swarming with demons out for human blood. When Won Mi-Ho, heiress of Daehan Group, finds herself at the mercy of one of these evil demons, she strikes a deal with serial killer, Van, to ensure her survival."
 
(Source: WEBTOONS, edited)
 
Note: Won the Grand Prize of Exported Korean Comics Awards in 1999. 
 
Island was originally serialized in Daewon C.I.'s Young Champ magazine from 1997-2001 and released in 7 volumes. In 2016, the series was re-released on Naver Webtoon.

What would you do if you could live forever? Suk-Hui Kang has lived for over 10,000 years, yet always seems to make the same mistake — she wants to save others from certain death. This time, she chooses to help veterinarian Jae-Shin Lee with his terminal cancer prognosis. But the great clans of Baekje are dead set on finding out the secret to her immortality and healing powers. Will she be able to save her beloved doctor, or will the clans get to her first? 
 
(Source: WEBTOONS, edited)

"Am I the only one still alive?" A boy wakes up to find himself in a building full of dead people, and Gangnam is shrouded in complete darkness. No cars, no electricity and no stars in the sky… Not only Gangnam but the entire city seems deserted. (Source: WEBTOONS) Note: Includes 2 extra chapters.

“Can a human trust another human? To trust is to gamble. Then where should I bet?” The notorious mafia “Sambuca” abducts children and produces drugs. To fight against them, Mi-Ho Won, the heir of one of the wealthiest families in Korea, recruits immortal girl Suk-Ui Kang and former mafia member Lilia to form “The QUEENS.” Will The QUEENS be able to win the war against Sambuca?
 
(Source: WEBTOONS, edited)

The terror man and the revival man finally meet. "Destruction is the beginning of resurrection". The whole world is in danger with the birth of a new evil. Min Jeong-U has the ability to see misfortune and Seok-Hwan has the ability to come back to life. The two heroes made different choices... Who will be the final winner? 
 
Han Dong-U's and Ko Jin-Ho's first crossover work! 
 
(Source: Naver, translated)
 
Note: The chapter count includes a prologue and epilogue.

As the eldest son of the Polo family, Marco is striving to provide for his younger siblings. After a strange and unfortunate shipwreck, Marco finds himself in Asia, a place he was warned never to visit. Soon he realizes he is at the cusp of an unexpected journey where he will have to choose between protecting his family or saving the world.
 
(Source: WEBTOONS)
 
Note: There's a simul-publishing webtoon version of the manga in collaboration with <a href="https://anilist.co/staff/261773/YLAB">YLAB</a>.

A chaotic comic story of two perfect men betting on the future of "Castlesoft," a game developer company consisting of handsome men.
 Note: - This entry contains seasons one and two. - Includes a prologue and two extra chapters. 
- Note: Part of YLAB's Red String Universe.

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