The Mad Dog’s First Love Has Returned

“After you disappeared, everyone forgot you even existed.”

68 years ago, Kim Sibaek crash-landed in the other world Mak Slechth. Then, suddenly—he returned to Korea.

The moment he arrived, he reunited with Tae Woon, the younger "kid brother" he’d adored in childhood.

Though only 21 years had passed on Earth, the world had changed completely. Monsters had overtaken the planet, and humans awakened supernatural abilities.

And among those hunters, the most notorious S-rank hunter, infamous for his volatile and brutal personality, was none other than—Tae Woon.

“Why did he turn out like this…? My sweet Woonie used to smell like sunshine when standing still, like milk when he toddled around, his chubby cheeks were so plump and soft I couldn’t stop squishing them, and he was so tiny and adorable…”

But even now, Tae Woon was so precious to Sibaek that he couldn’t hurt him—not even in his eyes.

Before Sibaek could even begin to readjust to Earth, Tae Woon hit him with a shocking truth: Only Tae Woon remembers him. No one else recalls the Olympic gold medalist that Sibaek once was.

As Sibaek searches for a way to return to Mak Slechth, a system window suddenly appears before him— and throws down a series of weighty quests!

[Confess your love to a living being.]

[Oh, and by the way! If you refuse or fail, Earth will be destroyed.]

But as Sibaek hesitates, unsure whether to comply, the system delivers its final ultimatum:

Only by preventing Earth’s destruction will he learn the way back to Mak Slechth… Or will he?