For the Undying Sentinel

Saeneul, an S-class Sentinel who hunts monsters, hires Ryeonsol, an A-class Guide, as his exclusive guide—while hiding a strange clause in the contract: 'Once everything is finished, kill Saeneul.' Bound by a contractual relationship for unknown reasons, the two travel through various fields together and gradually find themselves drawn to one another. However, Saeneul attempts to push Ryeonsol away due to a past intertwined with Ryeonsol's parents and a lingering desire for revenge. As Saeneul seems to be racing toward his own death and Ryeonsol desperately tries to hold onto him, their twisted emotions deepen beyond control...