I Really Don't Want to Save the Earth

In the vast universe, there are countless powerful civilizations, and it is lucky for weak civilizations to survive. As a future human being, Lin Yu has seen with his own eyes the cruelty of the universe and knows the invincibility of the enemy. Therefore, when the earth is facing invasion, he just wants to run away to other human planets. However, with only three days before the invasion, the system gave him a mission to save the earth...