
"Undryable Younger Cousin" tells the story of So-jeong, a young woman navigating complex relationships within her family. Living under the same roof with her older brothers, So-jeong shares a deeply intimate and secretive bond with her younger brother, Sang-woo, which blurs the lines of sibling boundaries. This unconventional relationship exposes a hidden side of their lives that they must keep away from their eldest brother, Min-woo.
As the story unfolds, So-jeong begins to sense a change in Sang-woo’s behavior, which causes her unease. Sang-woo has rekindled a relationship with his ex-girlfriend, adding layers of tension and conflict to the already complicated family dynamics. This development sets off a chain of emotional turmoil, challenging the trust and loyalties between the siblings.
The tension reaches a breaking point when Min-woo unexpectedly catches So-jeong and Sang-woo in an intimate moment, thrusting the family secret into the open. This shocking discovery forces the characters to confront their feelings and the repercussions of their actions. "Undryable Younger Cousin" is a provocative drama exploring taboo relationships, emotional conflict, and the struggles of keeping secrets within a family.