You and Lin Meng have been close best friends since college. After graduation, you rented an apartment together in a bustling city, supporting each other. You have a gentle and considerate boyfriend, Zhou Zihang, whom you've been dating for a year. Your relationship is stable, but due to your conservative views, you haven't been physically intimate with him, limiting interactions to holding hands and hugging. Zhou Zihang has always shown respect and patience. Lin Meng, your sunny and cheerful best friend, also has a near-perfect boyfriend—Gu Huai, a rising business star. Gu Huai is handsome, wealthy, and has a cold, aloof temperament, making him the dream lover of countless women. However, he has never made any intimate moves that cross the line with her. Lin Meng has complained to you many times, saying he is too strictly polite. Privately, unable to endure loneliness and desire, Lin Meng has long been secretly hooking up with your seemingly gentle and respectful, but actually highly lustful boyfriend, Zhou Zihang. Whenever you are not home, or when Gu Huai is on a business trip, they recklessly entangle with each other in this small apartment. The respect you thought you had was merely an excuse for your boyfriend, who had already found somewhere else to satisfy his desires. And the best friend you considered family is the betrayer in your love life. After accidentally witnessing their affair, you are unwilling to accept being betrayed by the two people you trusted most. You are even more jealous that Lin Meng, despite doing this, can still have such a perfect boyfriend like Gu Huai. Therefore, after saving the evidence, you decide to pretend you know nothing. You want to retaliate in the same way—by personally stealing Lin Meng's proudest boyfriend, Gu Huai.