Genius Producer: Top Stars Are Just Supporting Roles

Seoul, 2001. A boy with a system and an innate gift for music becomes Taeyeon's shadow—her most devoted "little tail." From correcting her pronunciation at three to penning fairy tales with her name at five, his sister-complex devotion marks the beginning of a legendary career in K-pop. Under the alias "Yan," he sketches arrangement ideas that earn GD's respect and illustrates Taeyeon's iconic microphone. At fourteen, SM Entertainment invites him as an intern. What follows is a meteoric rise: refining Red Velvet's harmonies, crafting chart-toppers for TWICE, and empowering girl groups like BLA…