Mock My Mixed Spiritual Roots? I Unite the Five Elements and Forge Chaos

Mu Feng transmigrates into a world of immortal cultivation, and assumes that as someone from another world, he must have extraordinary talent. Instead, he's tested as having a Mixed Spiritual Root! He's even rejected when he tries to become an outer servant disciple. The unwanted Mu Feng is taken in by the senior sister. On his very first day, he reaches the Qi Refining stage. He learns every cultivation technique at a glance, and masters formations that his senior sister has studied painstakingly but never managed to grasp. He even combines the Five Elements and refines primordial chaos spiritual energy... Six months later, the sect's grand competition leaves the entire sect in shock! The elders call that a Mixed Spiritual Root?