My Wife Gets a Refresh Every Week

When Jiang You woke up, he found himself transmigrated to an unfamiliar world of immortals and martial arts. And to honor a marriage contract made by his ancestors, he reluctantly married into his wife's family, taking as his bride a woman he had never met. But a week after the wedding, he suddenly realized that his wife seemed to have become a completely different person. Not only was her personality utterly unlike before, but her cultivation level changed as well. In the first week, she was a sickly, timid, and gentle wife; by the second week, she had become a cold-blooded witch who killed without blinking; in the third week, she turned into a beautiful, mature woman who wielded demonic arts; in the fourth week, she was an ethereal fairy, pure and flawless; in the fifth week, she even transformed into a cute, clever, tsundere little girl... Jiang You had just one timid question: which wife was the one who shared the bridal chamber with me on our wedding night?