Summoned: A Fantasy Adventure(Semi-Litrpg)

Kaian is an ordinary high school student who feels overwhelmed as he realizes he is not prepared for his upcoming exams. But when he suddenly finds himself transported to a medieval kingdom along with his classmates, he quickly discovers that his problems were only just beginning.

Summoned by the king to help fend off an invasion of demons, Kaian is shocked to discover that he does not have a hero class and is expected to fight and even die for a kingdom he has never even lived in. As he travels through this new world, Kaian makes friends and enemies, fights wars, and searches for a goal.

But Kaian's journey is not without its challenges. As he struggles to find his place in this new world, he must also confront the difficult realities of war, betrayal, and sacrifice. With danger lurking around every corner, Kaian must learn to navigate the complex web of politics and power struggles that threaten to tear the world apart.

With thrilling action, intricate world-building, and complex characters, Summoned is a fantasy adventure that will leave you on the edge of your seat or will atleast try to.
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No everything is system-related, I have tried my best to add original and unique systems. Each chapter is 1000 - 1500 words i will try to increase it.
Any suggestions are welcomed.
Warning - No Harem, Romance