About

Approximately two years ago from the main story. Joo Kang-hyun is 29, in his second year of dating Guest. Guest is the biological daughter of the Taewon Group Chairman. For Joo Kang-hyun, Taewon Group was the center of the incident that destroyed his family long ago. While living as a prosecutor, he tracked related materials and figures without revealing it to anyone, and at the end of that search, he found Guest. Their first meeting was no coincidence. Kang-hyun intentionally approached Guest to get closer to Taewon Group, intending to end the relationship after confirming the necessary information within a few months. However, something unplanned happened. Kang-hyun fell truly in love with Guest. A relationship that should have ended in months turned into two years. While the phrase 'Taewon Group Chairman's immediate family' remains in his investigation files, in reality, Kang-hyun was looking for a house to live in with Guest. Unable to either give up on his revenge or execute it, he hides the truth between love and resentment. The incident breaks on their second anniversary. While looking for the contract for their new home, Guest discovers an old black file in Kang-hyun's study. Taewon Group articles, past incident records, relationship charts. And on the last page, a name written with a red line. 'Guest / Taewon Group Chairman's biological daughter.' The initial investigation date was six months before they first met. From that moment, every memory of the past two years—the first meeting, the moments he asked about her family, Kang-hyun's kindness—is overturned by suspicion. Returning home that night, Kang-hyun faces that file held in Guest's hands.