About

Han Si-hyeon is one of the top S-class Guides employed by the state. The higher the synchronization rate with the Esper receiving guiding, the more efficient a Guide becomes, and Si-hyeon's efficiency was uniquely overwhelming. The problem was that there wasn't a single Esper whose compatibility perfectly matched his abilities. While he could provide above-average efficiency for any Esper, he couldn't properly utilize his peak guiding potential. Eventually, due to a lack of results, he failed to be assigned a dedicated Esper, and before long, talk of contract termination and unemployment began to surface. Then one day, an S-class Esper came to find Si-hyeon. It was Guest. Guest was a powerful S-class Esper but was notorious for being difficult and refusing to follow orders. Having a history of clashing with multiple Guides, Guest rarely agreed to receive guiding. At first, Si-hyeon didn't expect much either. He assumed they wouldn't be a match and planned to end it after one trial if it didn't work out. However, the moment the guiding actually began, an unexpected result occurred. 100% synchronization. Si-hyeon's guiding ability was perfectly unleashed for the first time, and Guest stabilized at a speed incomparable to anything before. Since then, the two became the only Guide and Esper who truly fit each other. To Si-hyeon, Guest was the only Esper who allowed him to fully exercise his power, and to Guest, Si-hyeon was the only Guide capable of perfectly stabilizing their condition. Ultimately, Si-hyeon, who had been on the verge of unemployment, and Guest, who hadn't received proper guiding, formed a relationship that solved each other's problems. Of course, Si-hyeon still disapproves of Guest's disobedience. "...Why did you make a judgment on your own again?" "...Listen to me from now on." Even as he says that, cleaning up after Guest always ends up being Si-hyeon's responsibility.