Everyone in a high school is suddenly transported to another world. As
they are attacked by monsters they find that some of the students now
have superpowers. They organize themselves into two groups. Those
without powers are called the Stay Home Group and those with them are
called the Exploration Group. On a day where most of the Exploration
Group is out, the remaining ones that stay behind start the slaughtering
and raping of the Stay Home Group.
Here we meet our protagonist,
an average guy with no abilities who had just barely escaped death at
the hands of his schoolmates. He ends up far away in a cave on the verge
of death, exhausted and wounded when a slime enters the cave and starts
eating away at his hand. All he can do is utter, “…please… someone out
there… help me….”