Awakened as a Crow with Illusions: Lose Yourself in the Illusion

[Urban] [Illusions] [Academy] [No Brain-Dead Plot] [No Female Lead or One Female Lead] In a world of high martial arts and supernatural abilities, foreign races run rampant. Everyone can awaken a supernatural ability in their senior year of high school. Here, firearms are merely supporting tools, while supernatural abilities are the only true way to fight the foreign races. Is an F-rank Crow with B-rank infinite illusions really that weak? What if it came with an unlimited mana bar? One plus one is far from as simple as two. "Lose yourselves in my infinite illusions, everyone. Illusions are not just what my eyes see, but what countless eyes see." "Wait, why? Aren't F-rank abilities weak? And B-rank isn't that powerful in front of geniuses, is it? So why is it so strong in his hands?" "He forced his way into the ranks of the geniuses through sheer skill." "This is rigged, completely rigged! A flock of crows and one guy have taken control of the battlefield. So what are we even here for, to be a ten-thousand-person cheer squad?" I'm no good at writing blurbs, so please head straight to the main story.