Young Onigiri is kicked out of the house by his father on his 50th birthday and is told to make a name for himself. Along the way he encounters a bizarre girl with cat ears, and shenanigans ensue.

E-Sports has taken the world by storm, and one fighting game in particular "Tiger Square Alpha" has become the most popular of them all. Every year the greatest players meet to see who is to be crowned the new champion of the world.