Transmigrated as the Possessive Male Lead's Substitute Lover

[Clear-headed, carefree canary × real heir who falls for her on his own] After entering an old-fashioned romance novel, Chu You becomes the substitute lover of the obsessive second male lead, Lu Shen. Lu Shen has no protagonist’s halo. His storyline is all about loving someone he cannot have and turning dark. She is the unlucky ex-girlfriend who looks about seventy percent like the heroine, kept by the second male lead as a substitute lover. In the original story, the original Chu You is so foolish and difficult that she brings about her own death. But she’s different: sweet, obedient, and considerate. If her sugar daddy says go east, she never goes west. She’s just waiting for the right moment to take the money and run. - The original heroine has finally appeared. The plot is back on track. Chu You packs her bags overnight, ready to vanish without a trace. Then she discovers that she runs, he chases, and she has no way to escape. - Lu Shen can’t understand it. A seven-figure monthly allowance, a detached villa in the city center, and the best of everything. He’s been so good to her. Why is she still trying to run? Is he not handsome enough, or is he not giving her enough money? His friend Xu Cheng says, “You’re so controlling, and you treat her like a pet. Have you ever considered having a proper relationship?” Lu Shen suddenly understands and starts trying to “date normally.” Chu You runs even faster. - At last, one late night, he catches up with her and corners her. His eyes are red, and his voice is as gentle as if he were soothing her: “Substitute? Who told you you were a substitute?” “How are you anything like that woman?” “Chu You, I’m this crazy about you. Haven’t you figured it out? There’s only ever been you.” [She thought she was a premium knockoff, never realizing he had recognized the real thing at first sight.]