A Chinese love romance with a difference in status, where light and darkness, the exact opposite paths, are lived!

"What's under your mask?"

Maple, where Lin Yu and his family live, and its neighbor, Kun, have been at odds with each other for many years, but now they have formed an alliance. However, when the king of Maple senses that some people in Maple and Kun are acting suspiciously, he orders Lin Yu to “flush out the informants".

Lin Yu then orders Wu Yao, the most skilled of his agents, to investigate the man of suspicion, Premier Li Zai, but the mission is dangerous, so he asks Wu Yao in return, “Is there anything you want before you go to your post?" and he is told something he never expected: “I want to hold you!"

Lin Yu finds in Ou Kui's clinging expression an image of Xiao Xing, whom he loved like a real brother in the past, and decides to accept the offer, but...?