Anime where character has a problem with themselves or need to be protected?

[XxVongolaPrimaxX]

im looking for sumthing along the lines of perhaps a girl needing to be protect by a guy for sum reason or the character has a really bad problem with there past and know or maybe even dont no and have a hard time with life. sumthignlike edward elric from FMA or Kira Yamato from gundam seed or sumthing along these lines! thanks u