Nobody In Another World...

A Highschooler named Oliver was reborn in another world with his classmates but he has no ability or any cheats.he is a nobody,his grades was completely average,his physique looks completely average,he is a loner and nobody really cared about him,his background is a complete mystery and it's almost like he is a non-existing person that existed for no apparent reason.

How would he survive the cruel ways of another world?