Travel to Other Worlds with the System

Yi Yi, who suffered a family accident, accidentally obtained the ability to travel through the system and come into contact with areas that ordinary people cannot access. There are still immortal cultivators in the city, there are actually worlds in other planes of the universe where everyone cultivates immortality, and the prehistoric world of ancient legends is actually real... How will Yiyi, who owns the system, use the system to explore the avenue he has been seeking since ancient times in this complicated world?