Super Academy? I Am Reborn and Am Invincible

Rebirth in the era of superpowers, awakening F-level waste, superpowers and sundries to repair? The whole school laughed at me, but I laughed. Having been bloody for ten years in my previous life, I know that this is actually the reconstruction of the essence of the supreme divine skill! Pen and bowl repair? That's just the beginning! Mutated beast cores, ancient relics... Everything is the material for my growth! Academy competition, S-level genius's cool spell? I took out the reinforced slippers and pressure cooker shield with my backhand! The end of the world is coming, and the Beast King will destroy the world? Watch me repair ancient ruins on the spot, and hit the ending with a wrench! "I'm just a repairman, so I'm really no savior!" ——Let's see how Lu Ren uses a pile of "junk" to build an invincible road to heaven! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.