Unknown variables

After Yuji Sacrifices himself to save Nobara and Megumi from the S grade curse they are left visibly slumped as life drags on. However the mundane days come to a staggering halt when an enigmatic and mysterious new individual is introduced to their life by their ever hyper-energetic blindfolded sensei who claims he is a distant cousin. This new individual brings with him unconventional and erratic ways that not just threaten to shake tokyo jujutsu tech but the jujutsu society as a whole .