Seventeen-year-old Kim Tae Kook—or as everyone secretly calls him, Kooky—is no ordinary high school student. Towering at 6’5, effortlessly skilled, and terrifyingly competent in ways most people can’t even imagine, he’s known in certain circles as the thief of thieves. He can acquire anything, anywhere—but in school, he blends in like any normal teen… mostly.
By day, Tae Kook is a student. By night, a genius working in his personal lab, tinkering with inventions and software that even adults would struggle to understand. Despite his talent, he’s surprisingly grounded, living with his parents and mischievous little sister, Ae Rin—who seems determined to track his every move.
But life at school is never simple.
Enter Han Soo Min, a quiet, calm, and observant classmate who notices everything… and reacts to almost nothing. She’s smart, mysterious, and far too composed for someone so young. Tae Kook finds himself drawn to her, despite his best efforts to remain detached.
Add in Yoo Min Ho, Tae Kook’s loud, mischievous, and annoyingly persistent friend, and Ae Rin, the seven-year-old chaos agent who documents every awkward, funny, and suspicious moment, and you have a school life that’s anything but ordinary.
This series follows Tae Kook’s journey of secrecy, unexpected romance, and everyday chaos, where a single glance, a small interaction, or a quiet observation can turn his carefully controlled life upside down. From mysterious encounters to the comedic disasters that only his friends and sister can provide, every day brings new surprises—and perhaps, the beginnings of something Tae Kook never expected.
The Other World on KOOKY: a story of secrets, school life, and the quiet magic of noticing things that others overlook.