Kenshiro was supposed to be the savior at the end of the world, but right now, he was just trying to find a job. The three brothers, Kenshiro, Toki, and Raoh, happened to reunite at a convenience store and now fight for the part-time position.
They seem a little busy, 
so the narrator will explain.
Parecen algo ocupados, así 
que el narrador lo explicará.
Parecen algo ocupados, así 
que el narrador os lo explicará.
Enquanto estão ocupados, 
o narrador vai explicar.