World Trigger manga volume 28 features story and art by Daisuke Ashihara.

It's day five of the Sealed Environment Phase of the test, and the mission is to create Trion soldiers for battle simulations. The soldier-creation tools are robust, testing each squad's creativity and wits. At the bottom of the rankings, Wakamura's Squad is going to adopt a strategy concocted by none other than Hyuse!