Pang Hui Da Tang Dang Nüshen

In an age where everyone pursues extremely skinny figures for the sake of beauty, Lu Xiaorun—who is slightly chubby—has to face many difficulties. But one day, by chance, she travels back in time to the Tang dynasty. What kind of encounters will she have in a world where plump is beautiful? Will an otaku fujoshi like her be considered a weirdo in the ancient times she finds herself in? The thrilling and hilarious story of a chubby girl’s transformation... starts now!

(Source: Webnovel)