Prologue:

In our galaxy there are lots of solar systems, stars and planets unknown to us.

In year 3000, the humans have already invented things to discover the rest of the universe and one of it involves discovering a planet called Setters. The people living there are called Sets.

Since the living things in every planet are not really considered a threat by the humans, the planets live peacefully until a certain Set with a name of Oikawa Tooru, one of the talented Sets, declare war to all planets, including Earth.

All the representive in every planet goes to planet Setters to destroy the said Set.

What if they found out something different? Are they ready for this upcoming war?