A Loner's Calling

Ren, a high school student, was summoned along with his classmates to another world. Their job was to unite the 10 continents warring with each other. Unlike wars among countries, wars across continents were in a whole other league. Death was always nearby, creeping near to take away your life, luckily.
They were given abilities by the God in order to cope with their lack of experience, as well as a one month protection inside the heavenly dome for training, preventing their death.
But Ren however, was given something else entirely.
“[Loner] title activated, declining invitation to heavenly dome. Remaining in current world…”

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A/N
I am still learning on how to write a novel properly, so if you have any feedback (good or bad) please let me know, as well as any errors or mistakes. Thanks!