ATOM: The Beginning manga volume 5 is based on the original work by Osamu Tezuka and features story and art by Tetsuro Kasahara.

Tenma and Ochanomizu begin work on an all-new robot, A107, based on what they learned from Six. But when the machine, newly christened U-Ran, is almost complete, the engineering duo receive a mysterious offer…

ATOM: The Beginning manga volume 6 is based on the original work by Osamu Tezuka and features story and art by Tetsuro Kasahara.

The team goes international in ATOM: The Beginning Volume 6! With an all-new robot, the engineering team face down robots from across the globe to be crowned the best fighter of them all!</p><p>With their new cutting-edge robot ‘U-Ran’ now complete, the engineers enter the World Robot Fighting Championship! Challengers from all over the world bring their best creations, to face down in a deadly battle of steel and cunning!

ATOM: The Beginning manga volume 7 is based on the original work by Osamu Tezuka and features story and art by Tetsuro Kasahara.

At the first ever World Robot Battling tournament, the entrants compete to be declared the most powerful in the world! U-Ran dominates the competition but when she gets out of control Mars, Six’s eternal rival, shows up to calm things down!

ATOM: The Beginning manga volume 8 is based on the original work by Osamu Tezuka and features story and art by Tetsuro Kasahara.

After the World Robot Battling Championship, Tenma and the team return home to repair Six and U-Ran. A surprise visit from Ochanomizu's grandfather results in a tale of a robot boy he knew in his youth.