Modern-day top student, soul travels to another world's continent. Alright, what's this? The system awakens in five years, and my own life is full of hardships. Luckily, there's a cute and soft little sister by my side. Alas, she's underage. Well then, watch me turn the tide in these five years.
THE NAME OF THE SYSTEM IS STRONGEST FACE SLAPPING SYSTEM nothing related to outsmarting just face slapping