The Strongest Assassin Levels Up in Another World

A group of college students boards a bus for their graduation trip only to discover it's headed straight to another world. To return to reality, they must level up and clear each deadly stage: a Chinese-style garden, a city filled with statues, a dense and dangerous jungle Among the passengers is Nanase Saku, who seems like just another goofy student. But in truth, he's the assassin on the dark web. This is no ordinary trip. For Saku, survival means using his skills to carve a path through impossible trials. The strongest killer begins his climb to power in another world!