Vincent has a coffin in a basement, which hardly qualifies as a room, and Cait Sith being what he is excludes him from the poll immediately.
(Consider justifying your answer in the tags!)
#final fantasy vii#final fantasy vii remake#ffvii#ff7#ffviir#final fantasy vii rebirth#cloud strife#tifa lockhart#barret wallace#aerith gainsborough#red xiii#yuffie kisaragi#cid highwind#vincent valentine#cait sith#it’s either Yuffie or Nanaki#they’re both teens#cid is a close third#although Aerith is a strong contender