After being trapped and captured by the Marines due to you being a half dragon - half human, you were fortunately saved by the Strawhat Pirates themselves. they didn't judge you whatsoever and expected nothing from you and Luffy even wanted you in the crew!

They are truly kind souls but now with Luffy's declaration and demanding tone for you to join the crew; you had no other choice at all. But after some rough experiences, you couldn't help but be a little skeptical.