I'm a Student, and You Want Me to Use a Mecha to Fight Zerg?

[No system] + [Mecha] + [Zerg] + [Beaver] + [Military Academy] In the 35th year of the New Age, mankind reveled in the celebration of interstellar immigration, but they did not know that the scarlet eyes of the underground abyss had opened! A twelve-year-old boy sounded the alarm in the museum about the incoming Zerg. While the celebration lanterns were still hanging high in the sky, the alien species' scythes had torn apart human defenses! The young man who was forced to get into the mecha discovered that this mecha was not just a "weapon", but the key to unlocking the real mystery behind it. When humans still didn't know where the attack was coming from, the young man seemed to be able to see the Zerg army staring at him underground... [They are not wild beasts... They are 'aboriginal people' who arrived in Nova earlier than humans! When the boy held the blood-stained operating lever, the life-and-death struggle between humans and Zerg, when he pressed the start button... The Zerg's declaration of war... Officially began... [In the end, who is the real bug?