The Isekai hero has defeated the Demon King and is being sent back to his world, but the princess hugs him & they both get sent to another world full of sci-fi. Can they survive now?

Zip up and get your robot on! A new type of robot-action series! World-famous handsome mechanical engineer Koshiro Tatara and scary-looking musclehead Kaname, these polar opposite twins both fell in love with...