Lu Yunzhou, a poor scholar, repeatedly failed the imperial examinations and suffered endless mockery. By chance, at a dilapidated ancient temple, he used his blood to awaken the Heaven-Guarding Inkstone, and received supreme immortal-cultivation techniques taught by the residual soul of the old man Mo Xuanzi. After entering the Azure Cloud Sect, he was framed and harassed successively by Zhao Tianxing and Elder Liu, yet grew against the odds relying on the Hundun Spiritual Roots and the Taixuan Heart Sutra. Along the way, he fought against evil cultivators, went through numerous bloody battles, protected friends, family, and fellow disciples, crossed the insurmountable chasms of the immortal path, and finally achieved perfection in tribulation at the Nine Heavens Cloud Terrace, ascending upon the clouds, true to his original aspiration and the expectations of old friends.