I'm standing on a Million Lives Series by Naoki Yamakawa, Akinari Nao

Ninth grader Yusuke Yotsuya is practical, friendless, and not active in any clubs. Then one day, he and two female classmates are suddenly sent to another world where they must work together to battle for their lives. Yotsuya is a lone wolf and has always lived his life according to his wants, but how will that work out now that he’s supposed to be a hero?! Get ready for a one-of-a-kind fantasy story that will challenge everything you thought you knew about fantasy!

The ultra-practical third-year in junior high, Yusuke Yotsuya, is still stuck in this alternate universe where his next quest is to “transport cargo.” While on the journey, he and his party rescue a platoon of soldiers being attacked by monsters who join them on their way... moreThe ultra-practical third-year in junior high, Yusuke Yotsuya, is still stuck in this alternate universe where his next quest is to “transport cargo.” While on the journey, he and his party rescue a platoon of soldiers being attacked by monsters who join them on their way. However, the soldiers, who hail from a military power, had actually been on their own journey to publicly execute supposed heretics in their custody―including a child! As if this political dissent and religious conflict weren’t enough to contend with, Yotsuya and the gang then find themselves trapped in the dungeon of an ancient cavern. Yotsuya’s a far cry from the “ideal hero” in this world, so what secret plan will he concoct to get them out!? less

We'll bring the Deokk soldiers to the pit of despair and kill them!" The ever-calculating Yotsuya carries out a very non-Heroic revenge for his friends—but when the truth about the world he's sent into is revealed, it is a heavy cross to bear for the fourteen-year-old. His next quest, sending him to the island of Jiffon, will make him question the very meaning of his existence!

As part of their fifth quest, Yotsuya and the other heroes are involved in an orc-hunting expedition. Between the squabbling among the human side, the suspected presence of a traitor, and the intelligent orcs' massive frames, things look grim for the team. Yotsuya himself is deemed unfit to join the battle - but after a job change, he's aiming to get back into the fray! Is he ready to truly take the "hero" role in this intense fight?!

DEEP UNDERCOVERWith their plan now set in motion, the heroes must now rely on each other to continue infiltrating the dangerous cartels operating between Goldia and Ihar-Nemore. However, their alliances are still fresh, and trust is harder to come by than physical prowess. Together, they must untangle a complicated web of geopolitics, drugs, and violent histories, all with a careful eye on their assigned tasks in their ever evolving "game."