[You're Invited to Nayun's Reverse Harem House♥] Shin Nayun, who always dreamed of independence due to a warm yet complicated family situation, suddenly becomes rich overnight after winning the lottery. She finally achieves her dream in a large two-story house. While enjoying her freedom after quitting her job and gaining independence, Nayun hears that her childhood friend Baek Jeon, who had emigrated, is returning to Korea. She offers him a spare room in her house. Was that the beginning? Starting with Jeon, then college student Dogun, and even her non-blood-related younger brother Yeonwoo—one by one, they all begin gathering in her house... You're invited to Nayun’s reverse harem house, where long-hidden desires will be brought to life!