The Sword of No Beginning

What! ! ! Who told me that traveling with the system only requires fighting monsters? Leveling up will make you invincible? Why is my system fake? What, do you have to learn on your own? Are you playing with me? Wouldn't it be nice to exchange labor and capital for a space battleship to blast the planet? The employee's name is Yang Shuang! A man with excellent dual education! Phew, dual system time traveler.