Gu Qingfeng, the supreme swordsman of the three realms, resists the chance of ascension and accidentally picks up the congenital spiritual baby Yun Nuonuo. The aloof swordsman instantly transforms into a super daddy, everywhere 'borrowing' heavenly silkworm silk and fiery phoenix fluff from the beast king for milk, clumsily taking care of the clueless, divine-power-bursting little puff. On Qingyun Mountain, the man and the baby spend a time full of chaos yet full of warm affection. Nuonuo learns to speak and practice swords, makes spiritual pet friends, and the master and disciple grow together, fully showing the rare mortal warmth in the immortal gate.