“Who the hell is this cute little bastard? Which moron is mocking me with this childish crap?”

“It’s me.

I didn’t expect you to get this angry,

but… I love you, Teacher.”

On his 28th birthday, Jo Gyeol, newly appointed as the homeroom teacher for Class 1 at Buk High School in a remote mountain village, receives a spine-chilling anonymous love letter.

<Teacher, I love you. I want to marry you. Hehe. Dream of me, okay? From your lovely, adorable student. Mwah mwah ♡>

The oversized heart at the end bothers Jo Gyeol more than anything.

Emitting a terrifying chill, he sets out to hunt down the culprit.

“Who the hell is this cute little bastard? Which moron is mocking me with this childish crap?”

The culprit turns out to be Han Aro, the innocent best friend of Na Daero.

Terrified, Han Aro freezes, so Na Daero boldly stands up in his place and declares with explosive confidence:

“It’s me.

I didn’t expect you to get this angry,

but… I love you, Teacher.”

Thus, Na Daero, who confessed to his teacher through tears and gritted teeth, ends up with a burning backside as punishment.

The teacher-student relationship is heartwarming in its own way(?), but the truth is that Jo Gyeol is also Na Daero’s boarder.

Having had his own room stolen and been banished to the attic, Na Daero keeps a close watch on his homeroom teacher—who looks like he’d bleed exactly one drop if pricked—while lying in wait for the perfect moment to exact revenge.

In the process, Na Daero’s perception of Jo Gyeol evolves from “Delinquent-Catching Prosecutor Jo” to “Immoral Hypocrite,” and finally to “Lover as Beautiful as Moonlight.”

In the end, the former troublemaking problem child Na Daero gradually tastes the bittersweetness of first love, transforming into a romantic at heart, and ultimately grows into the guardian who protects his secretly wounded lover, Prosecutor Jo.

This is that love story.