The story takes place nearly 50 years after The Battle of Fortress Space of Global Century and in the present day and the protagonist name is Thomas Reynolds after losing his mother and father and he is the chief engineer who builds a Mecha Vanguard and his own project with his younger engineer, the test pilots, and the team, building 11 different vanguard variants, but only 2 were made so far and they going to the Moon for a “Real Combat” test, Thomas has his own family a wife and a son, when Thomas was dreaming his past almost 50 years ago of how he loses his parents and what he gone alone and suffer but he managed to survived the dark times when he was 12 years old and now Thomas is 61 years old and especially his own wife also have a dark times when she was only 10 years old and she also survived that too and now years after their dark past and loses, a lot things has change for years and Thomas has faced his own project to fight against the Research Hybrid Robotics, their rivalry.