Hyeon Heup, born with the ability to see the 'S Line', a red thread revealing sexual relationships, views it as a curse. After her family suffers tragedy due to her gift, she lives in
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Hyeon Heup, born with the ability to see the 'S Line', a red thread revealing sexual relationships, views it as a curse. After her family suffers tragedy due to her gift, she lives in isolation to avoid causing harm. When a series of mysterious murders disrupts her neighborhood, Hyeon Heup begins using her ability to track the killer, setting her on a dangerous path.
