National Destiny: Obtaining Jellyfish at the Start of Lagrange

In an accident, Mai Xiaoxiao traveled through time again. He was still familiar with Blue Star, but before he understood Blue Star's situation, he was selected as a participant in the National Games to fight for China, but... "Oh, isn't this rich? Have I come to La Grand?" Mai Xiaoxiao looked at the FG300 multi-purpose frigate with a puzzled look. (How does the protagonist defeat the enemy's attack, and how does he conquer one galaxy after another)