The C-Class Magic Student Who Pretends to Be an SSS-Class Mage

The strongest man in school usually hides his true strength and acts like an ordinary student.. There was a man who staked his life on such a delusion: Shion Ichinose, an ordinary student attending Crawford Magic Academy. Shion continued to behave like an "SSS-Rank" both inside and outside the school, but his eccentric behavior eventually involved those around him..? Only his delusions and acting are SSS-Rank! (Source: Overlap, translated)