禁足地 = a kind of forbidden place. Unless you are a specialist or specific person, you should not enter.
…ここ禁足地だろ… = ...this should be Kinsokuchi area...
…大丈夫かな… = ...is it safe(to cross the line)...
*かな… emphasis, that he himself not sure. ex. God maybe punish him somehow...
- - - - - -
edit: just read whole RAWS.
when she said
"後ろからじゃないと引っ掛かって無理なのだ。"
じゃないと = is no t condition, but "must...."
So it a kind like
Must (get her out) from behind, I'm stuck, or else it is impossible(to get her out). // pulling from front (as he offered) is useless.
So he try getting behind while afraid of something liked god curse....
They look like they're perpetually under the effects of some sort of anime-eye filter. Their eyes just look too cartoony compared to the rest of their bodies.
@kskase
Thanks for your input! Looks like I understood the sentences by themselves correctly, but missed the implication that the guy went into the area. Makes sense now. Lol I spent so long trying to figure out what I missed in the 後ろ line; no wonder I couldn't find anything, cause I'd actually understood that line accurately lol