Mecha God Awakens Battlefront

A young boy who loves mechas unfortunately encountered an accident in a game, which caused him to travel into the game world. This world is just like the game description, with constant wars and the human race being constantly oppressed by alien monsters. Mechas have become the ultimate weapon for humans to fight against monsters. But it seems that in this world, not only monsters are the enemies of mankind, but also various forces within mankind are fighting openly and secretly... In the final Delta, mechas are men's eternal romance.