Loli Will Take Me to Fly a Mecha? Backhand Cheating and Marrying Home

(Single heroine + pure love + invincible + loli) Thirty-nine years ago, monsters fell from the sky. Due to legal restrictions, humans could only use huge humanoid mechas to face the enemies. Long Tianling thought that all this had nothing to do with him, but what the hell was this Loli who had been waiting for him for forty years? Is this loli a master of mechas? In this case, I won't act anymore, let's go! Kill monsters, strengthen mechas, and finally eliminate all monster threats! "I understand the truth, but if it's on, it's on, it's just not off." "Take it! This sword has a magnification of 1,000,000%!" "It's just a fatal injury, let me bounce it back to you!" "I don't know, I thought the monster was a speed bump~" "I tried so hard to cheat, how are you still alive?"