Red was never my name

In a world where mech's control the world A young girl finds herself back in her hometown a lot of stuff has changed in a year while in town she finds many mysteries and blows up a lot of mechs she soon finds herself at the safe haven underground is it a trap or a normal supply stop will stuff from her past slow her down will she have a new friend she didn't think she had will a dark hair stranger make her fall in love or will she perish in the fight for freedom and survival