Introduction: Who doesn't like a good Revenge story. It is even better if the Mc returns to the past and executes his revenge while being smart and ruthless. If he is good to his friends and a devil for his enemies, what more could you ask for?Join Ethan as he returns to the past and executes revenge (smart and patiently) What to expect : 1) Great Worldbuilding2)Well explained system and their purpose (At later arcs)3) Smart and Realistic MC4) Weak to StrongWhat not to expect:1) Fighting in every chapter.2) Spoon fed Mc.3)Overpowered and nonsense System.4)Power up with no reason....