His Mark

In a world where individuals with unique abilities, known as "Espers," face deep social misunderstanding, Seung-won, a Class-B operative, finds himself unfairly demoted following a series of unfortunate events involving a powerful family. To support his mother and sister during his suspension, Seung-won is forced to accept a high-profile assignment: working as a specialized bodyguard for Jin-ho, a prestigious S-Class Guide. However, Jin-ho is a temperamental young man who deeply values his personal space and initially seems to detest Seung-won's presence. Despite their mutual friction, the two are forced to collaborate closely on a specialized project. During this time, Jin-ho realizes that Seung-won’s skills are indispensable and offers him an exclusive "professional contract." As they work together, the cold barriers between them begin to fade, leading to a bond that neither expected. However, Seung-won soon begins to experience mysterious dreams featuring someone who looks remarkably like Jin-ho...