Reborn as a Vicious Side Character, I’m Desired by the Cold Male Lead

Looking for a Quick Transmigration Novel I Read Before

It was a quick transmigration story. I remember one world where the female lead transmigrated into a little kid, quite young, and then started an online romance with the male lead. I think it was immersive quick transmigration. I probably hadn't saved the book at the time, and now that I suddenly want to read it, I can't find it. Please help ಥ_ಥ