Welcome to The Cave of Dragonflies forums, where the smallest bugs live alongside the strongest dragons.
Guests are not able to post messages or even read certain areas of the forums. Now, that's boring, don't you think? Registration, on the other hand, is simple, completely free of charge, and does not require you to give out any personal information at all. As soon as you register, you can take part in some of the happy fun things at the forums such as posting messages, voting in polls, sending private messages to people and being told that this is where we drink tea and eat cod.
Of course I'm not forcing you to do anything if you don't want to, but seriously, what have you got to lose? Five seconds of your life?
And she has a hilarious one with Raine at some point which ends with Raine saying "Let's just leave her here." which makes me giggle. Why does Raine have such a problem with Sheena, anyway? She doesn't care when Presea or Zelos or, hell, Regal joins your team.
Moral of the story: TV Tropes is awesome. =DYou fight against angels led by a legendary hero and ruin his plans for world peace. A ninja plays a key role in the story.