48 Hours as My Ex's Replacement

Main Plot: After her best friend schemes to transmigrate her into the body of her ex-boyfriend's substitute, the heroine must complete the “Perfect Ex” mission within 48 hours. But she unexpectedly finds herself in a bickering, enemies-to-lovers dynamic with her current boyfriend, and eventually exposes her best friend's plot and finds her true love.

[48 hours on the clock! The perfect script for an ex's substitute is falling apart,]

“Bonus deduction warning!” Shen Liangzhou pins me against the desk. I'm wearing the face of his ex's first love, but his current girlfriend's perfume makes me sneeze.

The System forces me to play my part in a substitute romance, but my childhood friend, the CEO, keeps threatening to dock my year-end bonus unless I act like a jealous girlfriend.

When my sharp-tongued lines collide with his lovestruck brain, my best friend's vicious grin on the surveillance monitor suddenly freezes. So in this game of substitutes, am I actually the client?