By Sinbad 's request , Yamuraiha makes use of her magic to prove Sinbad 's innocence .
It is revealed that it was all a scheme of Koubun Ka 's to have Sinbad marry the princess by force .
By Sinbad 's request , Yamuraiha makes use of her magic to prove Sinbad 's innocence and it is revealed that it was all a scheme of Koubun Ka 's to have him marry the princess by force .