Responses
https://www.mangago.zone/read-manga/my_girlfriend/ (not very romantic but still fits imo)
https://www.mangago.zone/read-manga/on_air/ (less on the survival type but romance+thriller mystery)
https://www.mangago.zone/read-manga/chasing_tails/ (not romance related but there are couples. Mostly focused on the survival plot tho)
Paradise on earth (idk if its gonna romance since its pretty new)
A ghostly song
School bus graveyard (on webtoon)
*its gonna have romance
Survival straight romance horror recs with good plot and art