A Digimon Journey Beginning with Ultraman

For reasons unknown, the Digital World was destroyed. At the behest of Yggdrasil, the World Tree, Yagami Sota partners up with Doctor Agumon and sets off on a journey to gather digital energy across different worlds.

And the first world they arrive in is…

“Doctor Agumon! That thing over fifty meters tall has digital energy!” Sota shouted. “Go beat it!”

“…” Doctor Agumon, barely 1.2 meters tall, stared at the excited boy speechlessly and fell into deep thought. “Is this idiot really going to be okay??”