A Man Transmigrated into a Woman: My Rival's Concubine

Blurb: He's a young lord, one who's planning to become a wastrel. After being reborn, Qiu Chengqing is in a terrible situation: he's transmigrated into the body of his rival's concubine! (⊙o⊙) He comes with a fake System, and its task is to help his rival pass the imperial exams and become the top scholar! Qiu Chengqing: ... System: "Once you complete the task, you can return to your original world and keep living as a man!" Qiu Chengqing: Dream on. I hate that guy! System: "Fail the task, and you'll stay here as a woman. You can marry, get pregnant, and give birth, and you'll even get your period right on schedule. Remember to drink plenty of brown sugar water!" Qiu Chengqing: ... ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ A story about having no choice but to help your rival become the top scholar. But he doesn't let his rival off easy, either. If he can't flirt with girls, then neither can his rival! ╮(￣▽￣)╭ A lighthearted, funny, sweet romance with wholesome values. Welcome to add it to your collection! ^-^ Also updating this older story: A Great Rebirth Story. Click to transmigrate.