The continental civilization is almost extinct, humans are relegated to the Holy City, and the Dharma Ending Age has arrived.

The little man Dino accidentally obtained the "Book of Taboo". In the cycle of death again and again, he delayed the collapse of the holy city and unveiled the veil of each era.

When later generations recalled his deeds, only some incomprehensible titles were left:

the Red Devil.

The Arbitrator of the Divine Court.

The one who looks back.

Prismatic Angel King.

Dragon of time and space.

The strongest undead...