In a world where gates suddenly appeared, Espers were like a national power. South Korea's representative S-Class Esper, Cha Jae-U, had a problem: after he gained his powers, he couldn't find a guide who had a high match rate with him.

Thus, it was mandated that all citizens must take the guide test.

"No way... I really hope this is not the case, but..."
"Haa..."
"...Is it Cha Jae-U?"

Hae-Yul took the test, thinking he might as well get it over with, and he set a record of an unprecedented 97.8% match rate with Cha Jae-U!

"So what? I'm a D-Class...!"

Cha Jae-U was an S-Class Esper who had never received proper guiding before and was on the verge of exploding, while Hae-Yul was a pathetic D-Class Guide. Wouldn't even something like going after a boss monster as soon as you select your character be a better choice than that? Hae-Yul was about to refuse, having lost all energy at the thought that he might die, but...

"If a guide for Esper Cha Jae-U doesn't appear, then he will be killed."
'...A-Are they insane?'

Just who was he worrying about, when he might die if he accepted? But after hearing that if he didn't become Cha Jae-U's guide, the Esper would die, Hae-Yul swallowed his tears and signed the contract.

"Um... I already did today's amount this morning..."
"That's it?"
"That's the best I can do..."

Afterward, Hae-Yul lived in one house with Cha Jae-U and a particle-sized amount of mana. He ended up guiding him once a day, but...

(Source: Ridibooks, translated)

Note: This is a promotional one-shot for a web novel of the same name.