The Best Life of an Ugly Concubine.

Song Jiaren, the descendant of a traditional Chinese medicine family, accidentally traveled to another world and became a fat woman weighing more than 200 pounds. After marrying a sickly war god prince Chu Yan who was terminally ill and about to die, she had to use her modern knowledge to prove her own innocence. Through her unremitting efforts, Song Jiaren not only became thinner but more beautiful.