Where are we? (On Hold)

This was inspired by a fanfic I read called Why us? by @sandwrath
So shoutout to them for giving me this idea.
Anyways, Izuku and Tanjiro find themselves in a new world filled with giant, naked people called Titans attacking them. They were surrounding but took down the beast ambushing them. This was spotted by Captain Levi's team. They were taken back and put to serve in fight against titans. What happens when Levi and someone else takes a liking to our two unknown newbies. Will Tanjiro and Izuku rush to try and go home or will some people attract them to stay and help?