Sokushi Cheat ga Saikyou sugite, Isekai no Yatsura ga Marude Aite ni Naranai n desu ga. S01

When Yūgiri Takato wakes up to the completely crazy and bloody commotion on his school trip, he realizes that all of his classmates have been transported to another world! It seems he was able to sleep through it all and miss out on the gift that the others received from the mysterious sage who transported them. Worse still, he and one of his classmates are ruthlessly abandoned by their friends to serve as a match for a nearby dragon. Though the thought of death doesn't bother him much, he reluctantly decides to preserve his companion. After all, a level 1000 being with hidden powers can't be a match for a death sentence in one's mind! That is, if he can stay awake long enough to use it...