Alien Invasion, I Awakened the Hero Development System

Easy+Funny+Superpower System+Travel to Another World+Not the Holy Mother+Lots of Girls Lin Jun returned to high school and found that Blue Star was being invaded by another world. After awakening the system, he had the power to protect his family. However, he did not expect to invade another world after a mission. Lin Jun, who was in a different world, decided to practice to the full level in this world first.