The Bastion's Laziest Speedster

The opening ceremony of the Darvaza Bastion went exactly as I planned: I tripped, spilled initiation wine all over the prodigy senior Kamran, and let him publicly humiliate me. Being the academy's trash-tier Gale-Walker is the perfect cover for a regressor trying to prevent his little sister Mitra from dying in a catastrophic Qaf-Breach. Hiding my Mythic-grade time manipulation is easy: I just freeze time, casually walk to my destination, and unfreeze. Everyone thinks I'm incredibly fast and mysteriously out of breath. Kamran loves bullying freshmen, utterly unaware I spend my frozen time rearranging his dorm furniture by exactly one inch so he continuously stubs his toes. My peaceful, petty revenge is threatened when Soraya, a ridiculously observant senior scholar-fighter, decides my 'speed' defies physics and starts investigating me. But everything derails when Kamran corners my best friend Javad in the courtyard and draws his blade. My temper snaps. The falling rain freezes mid-air, and my temporal aura violently leaks out, crushing the arrogant prodigy to his knees. Will the Bastion realize their biggest joke is their deadliest weapon, and can I uncover the true traitor lurking in my friend group before history repeats itself?