Heavy Object
ヘヴィーオブジェクト (original)
In the future, warfare has been revolutionized by the invention of mechanical weapons called “Objects.” These Objects are overwhelmingly powerful, rendering traditional weapons like guns, tanks and fighter jets completely useless.
Starring Eri Suzuki, Shizuka Itoh, Natsuki Hanae, Saori Onishi, Kaito Ishikawa, Hisako Kanemoto, Rina Sato, Ryusuke Ohbayashi
It's a animation and action & adventure show, and has a rating of 6.4 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from Australia.