I'm Powerful But Insist on Hiding My Strength

Xiao Ning was reborn. In his childhood, he obtained a sign-in system and began to develop. However, ten years later, the sign-in system turned into a mission system, requiring him to help the Son of Destiny complete missions to gain cultivation. From then on, he embarked on an invincible path, with powerful parents, an aunt who hid her cultivation, making the Saintess of a Holy Land his maid, supporting the Eldest Princess to ascend to the throne and become an Empress, a master with a strong contrast and yandere tendencies, and female demons obsessed with love. Oh my goodness!