Ultimate Check-in System

In a world full of danger, a teenager awoke with the Check-in System. No sense of danger? No sense of challenge? No! His life will not be mediocre. He will rise above the sky, shining brighter than the stars. In a world full of possibilities, he will become the absolute beacon of strength. But all of these take time. Time waits for no one! So, he will not wait for his opportunities. He will carve them himself. This will be a journey of an ultimate cheater.