Two large men fight each other to see who is the strongest.  A human intervenes in a duel between cow and bear.  A girl marries a snake.
And so Niou became 
Hachiman-sama's gate guard.
A partir de ese momento, 
Niou se convirtió en su guardián.
A partir de ese momento, Niou 
se convirtió en su guardián.
Então Nio se tornou o guardião
 do portão do deus Hachiman.