Outside the underworld, by the Santu River, there are large tracts of bewitching Manzhu and Shahua.
They have a sad and beautiful name - called Bianhuahua.
In the underworld, there was a gloomy and evil figure on the bank of the Forgotten River.
He has a noble but abject life experience - the seventh son of Pluto - an illegitimate son.
In the mortal world, hidden in Tokyo, there is a cold and terrifying killer.
He has a certain destiny - called 'ending'.