Only and Only is a 2021 Chinese romantic drama (a prequel of Forever and Ever) adapted from the novel One Life, One Incarnation – Beautiful Bones by Mo Bao Fei Bao as part of iQiyi's Sweet On series. Directed by Guo Hu &, screen-written by Mo Bao Fei Bao, the drama starred Ren Jia Lun , Bai Lu, Wang Xing Yue, Li Yi Ru, Su Meng Yun, Wu Man Si &, more. The filming lasted two months from November 26, 2020 to January 29, 2021 which was aired from August 18 to August 27, 2021 on iQiyi.
Cui Shiyi was destined to marry the crown prince. However, she meets and falls in love with the brave general Zhou Shengchen.
Zhou Shengchen (Ren Jialun), also known as the Nanchen Prince, has earned a reputation since he was young for his great merits in battle. He has vowed loyalty to his country and his rigorous discipline and modesty has won much praise. Cui Shiyi (Bai Lu) is the only daughter of the esteemed Cui family. Ever since she was born, her future was already written in stone due to an arranged marriage that will make her the crown princess. Because her family has strong ties with Zhou Shengchen's family, she was sent to his manor to learn the arts.
Cui Shiyi is kind-hearted, lively and intelligent. She brings joy to others and is well-loved by everyone at the manor. In getting to know each other, Cui Shiyi comes to admire Zhou Shengchen's glorious ambition and refined character. Without her knowing, she has already fallen in love. Whether she is waiting for his return or fighting alongside him, Cui Shiyi has always been Zhou Shengchen's pillar of support and constant companion. Despite their growing feelings, they maintain the boundaries of courtesy. With trouble brewing at the borders once again, Zhou Shengchen does not hesitate to lead his soldiers to war. At this time, Cui Shiyi is driven by obligation to marry the crown prince.
One and Only has been given the high scores of 7.2 on Douban, 8.7 on Mydramalist &, 9.7 on iQiyi.