We Both Transmigrated, and My Boyfriend Became a Crown Prince?

[Dual transmigration, cherished by everyone, sweet romance] Li Mumu had been the pampered heiress of a wealthy family for over twenty years when she suddenly transmigrated to ancient times. And as if transmigrating to the past wasn’t enough, she became a chubby girl who weighed 160 jin? She fell into the water with the crown prince and ended up having intimate contact with him? A doomed start? No, no, no! Who says this is a bad start? This start is fantastic. Her father dotes on her, her mother adores her, and her older siblings spoil her. So what if she’s a little chubby? Besides, can’t she just lose the weight? And her childhood sweetheart boyfriend happened to transmigrate into the crown prince. So what if they’ve had intimate contact? They can just get married. That’s taking a close relationship to the next level!