Summary
Kang Seo-jun, Da-in’s former flame and first love, unexpectedly reappears with a startling claim: he is destined to die unless he marries soon. He asks her to enter a 100-day contractual marriage. Though the proposal feels absurd and slightly insulting, Da-in decides to negotiate her own conditions. With terms agreed, their unconventional life as a temporary married couple kicks off, blending awkwardness with unexpected moments.