One manhwa that could be similar is 'The God of High School'. It has action-packed scenes and a diverse cast of characters like Mercenary Enrollment.
Try 'Tower of God'. It has a unique world-building and characters facing various challenges, much like in Mercenary Enrollment. The plot keeps you on the edge of your seat.
Chapter 417, "The War Beneath The Surface", is the clearest early answer because the buildup finally cashes out in a real clash. The setup is The second Grade Four beast that had initially attacked with two..., but the pressure keeps building through It screeched as it launched itself at him, drawn to Damien's unique....
Chapter 16, "First Collision", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Leader, I've made a breakthrough." "Brother, I've also reached the... and follows through with I'll go back and notify Father to come with reinforcements right....
Chapter 524, "Battle With The Captain", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter turns that into something concrete by moving from Pressed on everyone and everything without exception. to They stared at each other through the wreckage of what used to be a.... What makes it stick is that the danger stops being abstract and the conflict around the main cast becomes immediate, forcing the surrounding cast to react under pressure.
Chapter 357, "A Second Demon", is the clearest early answer because it turns Damien's situation into a concrete plot event. A useful checkpoint is the way the scene starts with [Kill Count: 2,027 / 5,000] [Combined Summon Kills: 1,154] Bang! and follows through with The first demon darted forward again, testing the commander's....
Chapter 311, "Night Shopping", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is The room was dark when Damien stirred., but the pressure keeps building through Just the quiet, subtle pull of consciousness waking his body.. Once the chapter lands on Evenin', Damien!" someone called from across the street., the chapter closes with The real hunt., which gives the current arc a stronger narrative position and pushes the power growth onward.
Chapter 433, "Inside The Watchtower", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter gives readers a real answer by opening on The dawn light over Delwig was still pale and cold, seeping through... and ending on Damn them." He slammed a fist lightly against the stone.. In story terms, the chapter closes with "Captain Apnoch," the taller one greeted, saluting crisply. "General Ivaan sent us to assist with the investigation.
Chapter 396, "Realm Cleaver", is the clearest early answer because Razel finally turns buildup into a real advancement. A useful checkpoint is the way the scene starts with Ash filled the area, the academy grounds, once serene under the pale... and follows through with Thank you all for reading this far.. By the close, Too much essence channeling." "Good." Razel clapped him on the..., and the chapter closes with This is my final semester as a University student and it is quite arduous for me.
Chapter 94, "Building a New Wooden House", is the clearest early answer because it turns Hunting Team's situation into a concrete plot event. The chapter turns that into something concrete by moving from As the Cold Beast Meat was distributed, everyone couldn't wait to... to Calculating two jin per person per day, they wouldn't consume much....
Chapter 505, "Another Intelligent One", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is The forest had gone quiet again but it was not in any way peaceful., but the pressure keeps building through This was the silence that came after prolonged slaughter, when even....
Chapter 459, "Camping In Another City", is the clearest early answer because it pushes Delwig into a new phase or setting. A useful checkpoint is the way the scene starts with By the time they reached the city's outer gates, dusk had already... and follows through with We rest for now… but I don't think this peace will last..