Along with the first appearance of the "Trouble"s, some number of humans were born with or acquired supernatural abilities. These mutants called "Trace"s are the only ones who can fight the "Trouble"s. 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 Ghang-Gwon, a high school student born as a "Trace" who attempts to hide ability. The other is also male
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