Wildly Playing Along with My Fake Sister-in-Law

Please add my upcoming novel, Glad My Brother Doesn't Know, to your reading list~

When his closest twin brother suddenly vanishes, his life or death unknown and the circumstances shrouded in mystery, Liu Fufeng decides to impersonate him, uncover the truth, and bring him home.

His brother is a brilliant constable who can solve cases and determine the killer from an autopsy, as long as Liu doesn't let anyone discover he can't fight. His brother is sunny and warm, and Liu has the exact same face, as long as he doesn't do anything mean. His brother and his male sweetheart are long-distance pen pals who have only recently planned to meet in person. His brother tells him everything in his letters, so Liu knows all the details... He should be able to pull it off, right?

Prince Su, Yin Guizhi, has just returned from the border when his imperial elder brother assigns him a case involving stolen weapons. The local constable has mysteriously disappeared, and there are no clues, just a secret letter. The culprit is bound to come looking... After searching the Liu residence, Prince Su orders his subordinate to impersonate the missing constable's sweetheart, a man who has only exchanged letters with him and has never appeared before anyone, but is coming to the capital to meet him.

He doesn't expect the door to be knocked on so soon. His subordinate hasn't even had time to get into character when the constable returns and immediately tries to hug him, saying he's missed him terribly. He slams the door shut, realizes something is wrong, then opens it again to find the constable expertly fetching a kneeling board and getting down on it. "My darling, I was wrong. I shouldn't have been so forward..." The man is crafty, too: he's padded the board with three layers of soft cloth.

According to the clues, the two had exchanged letters, their affection growing with every message... Prince Su held back, reached out to help him up, and meant to say he wasn't angry. But the stone step suddenly shifted, turning his helping hand into a grab. He pulled the constable into his arms and held him so tightly there wasn't a crack between them.

Liu Fufeng: ...

Sister-in-law, with those handsome brows and eyes, who knew you were into this? If that's really how you like it... I'm something of a tea expert myself.

He kept reminding himself: It's only an act. His sister-in-law belongs to his brother. He has to protect and respect him, not take liberties... No, sister-in-law, control yourself! Hold back! Keep your hands to yourself, and your mouth too! Is this bed really somewhere you and I can lie down together?

Prince Su was accustomed to the bitter cold at the border, eating alone and sleeping alone. He knew nothing of love and had no desire to learn. Then one day, he found himself overcome by an intense urge to break up someone else's romance.

The person before him had bright, warm eyes filled with him alone. He knew how to act sweet and how to wheedle, like a willful cat that had barged into his life. One playful tap of a little paw was enough to soften his heart. The cat was right within reach, close enough to draw into his arms with a single movement.

And that so-called sweetheart who had disappeared without a trace and failed to show up for their meeting was surely a liar, someone who would break the cat's heart one day. So... why shouldn't he take him for himself?

If he takes him, he's mine.

I won't let him go for the rest of our lives. He's only allowed to be mischievous in front of me.

Important: The older brother has his own love interest, whom the younger brother has never met. He mistakes Prince Su, whom he sees at home, for his sister-in-law. Prince Su and the older brother don't know each other and have no connection whatsoever~

Theme: Protecting someone is a way of expressing love.