A rich man learns of a treasure in a swamp and forces his servants to drain it. Tatsuko goes to a shrine in the mountain every night seeking eternal beauty. The black dragon, who is the master of a huge swamp, wants to marry the beautiful Kurohime.
The young man followed him as best he could.
El joven corrió tras él 
con todas sus fuerzas.
El joven corrió detrás 
suya con todas sus fuerzas.
O jovem o seguiu o melhor que pôde.