My Spiritual Energy Has Become Refined

In the third year of the revival of spiritual energy, all people awakened to supernatural powers. While others awakened S-level magical skills, Lu Chen awakened the F-level ability recognized as the most useless [Aura Affinity] - official note: can sense the concentration of aura. Commonly known as: humanoid air quality detector. The whole school laughed at him, but his childhood sweetheart cried for him and his eyes turned red. Until he was blocked in a dead end by a D-class alien beast and faced a thin line between life and death—— "Trash, what are you doing standing there? Pick up the third steel bar on the left and poke it in the eye!" His aura has become a fucking spirit! From now on, the F-class is no longer useless, but a walking aura radar. Others fight for talent, while he fights for tactics. While others fight for level, he fights for brains. When everyone thought he was lucky enough to sneak into the Dragon Kingdom's University of Supernatural Powers—— In the finals of the national competition, four S-class geniuses teamed up to force him into a desperate situation. He stretched out his right hand, and golden lines split open on his palm. "Xiao Ling, dinner is ready." The whole place's spiritual power was cleared instantly. ——Your ability determines your lower limit, and my ability determines everyone's upper limit.