The story set in the contemporary South Korea. Some 30 years ago, unidentified creatures appeared out of nowhere and have attacked people. They have caused massive destruction wherever they go. The monsters are called "Trouble", and get the world have fallen into chaos. Along with the first appearance of the "Troubles", some number of humans were born with or acquired supernatural abilities. These mutants called "Trace" are the only ones who can fight off the "Trouble". The "Trace" are also considered freaks and generally shunned by the community because some of them misused the powers for their own interest. 
 

The plot revolves around two main characters. Sa Kang-Gwon, a high school student born as a "Trace" who attempts to hide his ability. The other is Kim Yun-Seong, who acquired his "Trace" abilities during his early 30s. Soon after the acquisition, his wife and daughter were taken away from him for experimental purposes.

The story takes place after the end of Trace 1 and revolves around Han Sihyun, an investigator of the National Investigation Service (NIS). In attempt to find a way to coexist with "Troubles" instead of killing them, Sihyun frequently proposal to the board of NIS to approve a research on communicating with "Trouble." But after getting his proposal rejected yet again, Sihyun accidentally captured "Trouble" while he was drunk and decided to illegally experiment on it. Though communication seems impossible at first, Sihyun and his "Trouble" slowly begin to close the distant between them and form a bond together.


One day, monsters, known as "Troubles," appeared and began indiscriminately attacking people. Sometimes they took the form of humans, and sometimes they simply looked like horrific monsters. However, at the same time, human beings known as "Traces" also began to appear. Despite being human, they had superhuman powers. Though they often fight the Troubles, many humans see them as just another threat.
 
Kamiyama Yu was born as a Trace, and he so terrified his parents with his power that they sent him away. Growing up alone and apathetic, Yu began hunting Troubles to train himself. One day, he was outmatched and nearly killed, and he ended up being taken in by a human girl, Akane, and her father. Yu didn't tell them he was a Trace, and let them believe instead that he was an ordinary human orphan. Now, for the first time, he has the opportunity to live with people who care for him, people who see him as a human and not a monster. Will he be able to protect his new family, and keep them from finding out what he is?
 
(Source: MangaHelpers)
 
Trace is a re-telling of the original Korean webtoon of the same title, drawn in standard manga format by Amematsu.

A new Trace story! The great beginning of a big project! (Source: Daum Webtoon)

The God who rules over the vast world of 'Rodowan' one day announces a new Divine Law: All reproduction is immediately prohibited. 

Those who are banned from conceiving rebel for the sake of humankind and their children, but the power of God and their followers is overwhelming and oppressive. 

God brands children born after the Divine Law as children of traitors, killing them or turning them into slaves. 

In this chaotic world, those who wish to punish this sick tyranny begin their desperate fight. 

(Source: KakaoPage, translated)

Kim Yun-Seong was a regular guy living a happy life with his family. That is until he discovers he is a “Trace,” a class of mutant humans with special abilities who emerged to fight the mysterious monsters known as “Troubles,” who threaten Earth. Shunned by ordinary humans, many Traces live in hiding. That’s what Yun-Seong intended to do, but when his family is suddenly taken from him, he is forced to team up with a wild crew of Traces to find them. Little does he know what “troubles” lie ahead.

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