Choi Sang-eun is a master of matrimonial services, working as a professional single-life helper. Her job is to act as a dutiful, sophisticated wife for high-society clients who need a spouse for high-stakes business dinners, family reunions, or societal expectations. Operating with strict
professionalism and avoiding emotional entanglement, Sang-eun plans to retire to a peaceful life in Canada. However, her carefully constructed exit strategy hits a major roadblock due to her two long-term, contrasting clients.For five years, Sang-eun has spent Mondays, Wednesdays, and Fridays with Jung Ji-ho, a mysterious, taciturn judge. Ji-ho is emotionally guarded, communicative only in monosyllables, and uses Sang-eun merely as a silent companion for dinner. Meanwhile, Tuesdays, Thursdays, and Saturdays belong to Kang Hae-jin, a flamboyant A-list Hallyu star and chaebol heir who hired Sang-eun to escape his overbearing family and persistent paparazzi. Despite their radically different personalities, both men harbor deep-seated feelings for Sang-eun, which complicates her professional detachment.As Sang-eun prepares to submit her resignation, Ji-ho unexpectedly begins to open up, revealing a hidden warmth and a genuine desire to understand love. Simultaneously, Hae-jin’s lingering childhood attachment to Sang-eun—revealed to be his former tutor and a fellow orphan—flares up into romantic desperation. He proposes a media-stunt marriage to break free from his scandal-ridden public image, forcing Sang-eun into a chaotic
love triangle.Drama escalates when Hae-jin's powerful corporate family targets Sang-eun, viewing her as an unsuitable gold-digger. Paparazzi intrusions, blackmail threats, and jealous rivals threaten to expose Sang-eun’s underground business, putting her reputation and safety in jeopardy. Amid the turmoil, Ji-ho steps out of his comfort zone to fiercely protect her, proving the depth of his devotion. Hae-jin, realizing that forcing Sang-eun into a corner only pushes her away, matures and chooses to support her happiness, gracefully stepping aside.Ultimately, Sang-eun realizes that her fear of vulnerability was the only thing keeping her single. Choosing to walk away from her chaotic career and her retirement plans, she breaks the cycle of transactional relationships. She embraces a genuine, mutual romance with Ji-ho, proving that love cannot be bound by a contract, but must be chosen freely.