A sea otter and his friends, a raccoon and squirrel, live and play together in the forest.

The signing of a peace treaty has secured a tenuous ceasefire between mankind and the Zex, beings who emerged from space/time rifts connected to mysterious, distant worlds. Partnered with a Zex named Rigel, Azumi Kakamigahara must shoulder the fate of her own idyllic world. The unlikely pair head to newly established Fujimisaki Academy, where their destinies await.

Of all the races in the world only 3 stand at the top. Each race possesses a master of the martial arts, a Golden Martial God. The balance of power appears to be shifting after Wang Fan's brother is killed triggering a chain of events that will begin to turn the world upside down. Disguising himself as the Silver Tiger King, Wang Fan becomes a symbol of power and the hope of the human race. Some days Wang Fan is a boy genius that tries to blend in as a smart but helpless student. Other days he becomes a powerful tiger. Every race has their eyes on the Silver Tiger King as he continues to surpass every precedent and excel far beyond his peers all while under the guise of an unassuming student.

Ginya Otonashi is a college dropout who works part-time for a pachislot publishing company while aspiring to become a novelist. One day, Ginya comes across a secret organization and gets pulled into a competition to become #1 in "Pachi Battle," which is all a part of the Slotseum, a pachislot competition.