I recommend the following novels to you. The female protagonists are all very cute and innocent. Dumb and Cute Sweetheart is Transforming, Demon King is Beside, A Guide to the Adorable Female Lead, His Little Ancestor Loves Candies, Childe Alluring: Dumb and Cute Young Mistress, and Quick Wear System: It's Not a Crime to Pretend to Your Favor. I hope you like my recommendation. Muah ~