Rewind time a little, just after Lucien attacked the archers and Eleonora used the commotion created to quickly slip away.
Alex who was observing the battlefield discovered a group of archers in another location preparing to shoot Lucien down.
Grinning Alex Accel-ed and appeared in the middle of the group, startling the orcs who thought they were safe, one must know that, the difficulty of getting close to an archer corresponded to their weakness in close combat. Therefore, the moment they saw Alex appearing in the middle of them, they knew they were in trouble.
Alex brought Reaper, the knife Leena offered him on their date, and swung down. The Orc he was aiming for was split in two like a piece of bamboo. Without realizing what had happened, the body fell to the left and right separately. With a gusha~ sound, the freshly cut internals of the Orc spilled out of the body and splattered onto the ground.