The Imposter.

Tu Chacha, a ghostwriter, writes love letters for Miss Wen, but unexpectedly falls for the recipient, Shen Buyan. To protect him from Miss Wen's father, she creates a fake family to discourage his pursuit of her. However, their plan leads them into a trap, and as they uncover a conspiracy, Tu Chacha, Shen Buyan, and their makeshift family must face the consequences.