"Damn...I was just buying some Kikufuku mochi. Now, where am I? This world seem unfamiliar and familiar at the same time" Gojo Satoru, the strongest sorcerer of modern era migrated into the One Punch Man universe- time after Saitama become so strong the hero can one punch anyone. However Gojo Satoru not only inherited the Limitless and Six Eyes, he also got one- The System...an innate ability that can make his powers stronger than ever but it comes with penalty if he don't obey the system's command.