I don't remember much of the storyline from when I watched it as a kid so I started from the very beginning.
I'm up to episode 13 and this Tuxedo Mask guy is really getting on my nerves!
He always comes when the girls are acting their stupidest and steals all the glory!
So he shows up once again in episode 13 only now he's fighting the bad guy, Jadeite. In the process they both fall into the ocean.