The Fundamental LawThe Law of Immutability; 불변의 법칙; The Fundamental Law; The Immutable Law

Woori Nam has always been the golden boywealthy, carefree, and untouchably lucky. But on the leap day of 2028, his 7th real birthday, everything changes. A seemingly harmless reunion with an old classmate, Subin Shin, ends in a brutal murder. And then, inexplicably, Woori wakes up back in high school, right beside Subin who has no idea that he just killed his deskmate. Trapped in a deadly time loop where almost every timeline ends with his death at Subins hands, Woori becomes desperate to escape his fate. After multiple resets, Woori finally comes to the conclusion that the only path to survival may be ensuring Subins happiness. With just one life left, Woori sets out to give Subin the happiest life possible.