Invincibility Starts from the End

Traveling through the world of Ultimate Squad 3, you get the super synthesis system, and that's how invincibility begins. I really don't know how to write an introduction, I'm a newbie, please forgive me, there is no outline, I am writing as I go, I am not full-time, I can basically write one chapter a day, I don't mind fattening up. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.