Kaiketsu Zorori - Season 1 Episode 25 A Fiance Appears!?

What started as a good day quickly turned bad when Zorori finds a sign with a riddle about him on it. As he storms off angry about it, he finds a strange building that requires a riddle to enter. He solves all the riddles, but finds out that the person who put them up to solve was the space alien princess! She's come to Earth to marry Zorori and has even brought the wedding to him. Will Zorori marry her or leave her at the alter? Based on book 13.