Just Invincible, Summoned as a Guardian Spirit by the Cute School Beauty

Li Xuan traveled through the earth where the demon god resurrected for more than ten years and became a Taoist priest. As long as he killed the demon god, he could gain proficiency. More than ten years later, Li Xuan dealt with all the resurrected demons on the earth, and the purple sky god thunder method he practiced reached perfection, and he became invincible on the earth. Just when he was bored, he was suddenly summoned to the mysteriously resurrected Blue Star and became the guardian spirit of the once-missing Qingmei Lin Youyou. Li Xuan looked strange. He was already invincible. Let him deal with ghosts? Isn't this a dimensionality reduction blow? … My name is Han Feng, and I am a reborn person. In my last life, I contracted a cyan guardian spirit, which caused my initial development to be unsatisfactory and I missed countless opportunities. Later, I abandoned the cyan guardian spirit and wanted to replace it with a golden guardian spirit. My family was wiped out, and I could only go through bumpy roads until the terrifying demon came. When I opened my eyes again, I found that it was time to summon the guardian spirit. I chose to abandon the cyan guardian spirit and replaced it with a red guardian spirit of terrifying quality. In this life, I will suppress everything and become invincible... No, no, why is the cyan guardian spirit I abandoned so powerful? Even the terrifying demon has to bow before him? ! This is not right!