The Little Top Scholar

Xuan Chen was the foremost monk of the Great Yan Kingdom, renowned for his profound knowledge and martial arts skills. The founding emperor of Great Yan, showering him with rare treasures, earnestly invited Xuan Chen to serve in the court. However, Xuan Chen refused, citing his loneliness, lack of purpose, and desire to spend his remaining years in seclusion. Enraged, the emperor unleashed a bloody attack on Xuan Chen. During the ensuing battle, Xuan Chen unexpectedly transmigrated five hundred years into the future, inhabiting the body of Shen Nian'an, the seven-year-old only son of the Shen family in the Great Yan Kingdom. Shen Nian'an's mother, Shen Luoyan, abandoned by her scumbag father, Gu Yanzhi, had come to seek refuge with her brother's family with Shen Nian'an. However, they were rejected by her aunt and threatened to be driven out of their home. Grateful to heaven for the familial love he so desperately craved in his previous life, Xuan Chen vowed to protect his mother in this life, thus beginning his journey of revenge through the imperial examinations, ultimately humiliating his scumbag father…

Synopsis from DramaGo.