Mairimashita! Iruma-kun Chapter 16 marks a pivotal turning point as protagonist Iruma Suzuki shifts from passive survival to active engagement during the Execution Cannonball arc. The chapter highlights Iruma's character growth and proactive merit, securing a victory that earns him a rank increase. For a detailed breakdown of this chapter, visit Fandom mairimashita-irumakun.fandom.com/wiki/Chapter_16.