Sorry for the very unspecific title.

Basically, all I remember is that there's a class in a bus going on a school trip. There is a horrible accident, leaving the majority dead. Since it all happened in a remote area, the survivors are forced to stay together and hope for the outside world to notice at some point.
That's when suddenly one by one of the remaining students gets killed and nobody knows who the killer is. I remember there is a scythe involved and lots of psychological and horror elements.

Anyone perhaps having ideas what manga this could be?

Thank you!

I'm not sure if I wanna do this

Limit?

Dragon Head?

Quote from Intrinsic

Limit?

That's the one, thank you very much!! 🙂

I'm not sure if I wanna do this