My Forensic Pathologist Uncle Is a Little Bit Too Tsundere

Invincible from the Start, Hiding His Strength and Pretending to Be Weak to Outsmart the Strong

Hide your strength, play the fool, then surprise everyone.

Books That Are Sweet to the Extreme

I highly recommend this book! It's incredibly sweet. The female lead is doted on by everyone and has a secret identity, while the male lead is a real jerk. Most of the cast spends the book competing with him for her affection. The book is called "After the Divorce, Her Four Brothers Spoiled Her Rotten". If you're out of books to read, give it a try.

An Older Man Who Spoils His Wife

It's very sweet, about an older man and a young girl.

An Awesome Female Lead with Tons of Secret Identities, Stunning Beauty, and a Male Lead Who Spoils Her

No rebirth, and the male lead's secret identity must be incredibly impressive. His secret identities should be incredibly impressive too.

Sweet Romance So Sugary It’ll Make Your Teeth Fall Out

Sweet romance, childhood friends or love at first sight.

A Heroine Who Plays the Fool to Catch Her Enemies: Sweet on the Surface, Fierce Beneath, With Lots of Secret Identities

Any Sweet, Beloved-by-All Stories with Secret Identities?

Any recommendations for a story with a beloved protagonist, strong female and male leads, a secret identity, and lots of sweet romance? Modern or historical is fine.