so what im looking for is a manga with main characters boy and a girl who are trapped somewhere(i dont care if its another dimension,world etc) and they have to survive and their main goal is to return back, but they should work together. and it would be a plus if there would be lots of moments when the boy or the girl gets injured and the other protects the other , they bond and overall fluff. it can be any genre except yuri,bl and etc. it can even be horror.
the MC can be the girl (from her point of view) or both .
thanks a lot in advance
happy holidays by the way

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i have nothing to do so i read manga ^<^ (actually i have exams -_-)

Cradle of Monsters?

Also: Btooom!

don't fit exactly but:
King of thorn
Cage of eden

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Seishun Survival I wouldn't recommend it too much, though. About .. well.. survival trip + romance...

Well at first in ryuuroden the MCs try to get back to their world after being transported into the past but they get accustomed to it. I think Cage of Eden is your best shot. Also just in case, you should try Battle Royale

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Kanojo o Mamoru 51 no Houhou - this is the first thing that came to my mind. An excellent series that I think fits what you're looking for.

Try
Mirai Nikki

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Tournament Round 1
Round 2

Akarui Sekai Keikaku

guess ill read KANOJO WO MAMORU 51 NO HOUHOU and ill give mirai nikki another shot because i already tried some time ago but wasnt really in the mood thanks again to all of you who replyed, though if anybody still has sugestions dont be shy

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i have nothing to do so i read manga ^<^ (actually i have exams -_-)

Torikago no Tsugai fit nicely considering everyone is paired up boy-girl, but the romance may take a while to develop.

kami-sama no iutoori
http://www.mangaupdates.com/series.html?id=62194