Engen

Affiliation: Nameless

Engen, also known as the Smiling Man, is the deuteragonist of Hero Killer.

He is the leader of the villain organization known as the Nameless who was once a central figure of the major conflicts from the previous era that fought in both the War of Inheritance as an heir to the throne of Nera and as its second king during the Great War, afterward he went into hiding and somewhere along the way saved Rachel Sinclair and organized the survivors of the war. While not all of his motives are clear, he wishes to defeat The Iron Witch, the mysterious woman who gave him his iconic scar, and destroy the Hero Clan.

Engen is a stoic, calm, and collected man at nearly all times, which shows an aura of mystery. However, Rachel says that this is just a front and he's quite crazy, which he used to be more open about in his youth, although it still surfaces from time to time. According to Chain, Engen has always had a creepier side to his personality even in his youth, but he has become more twisted as time passed.

A first-class villain, Engen is incredibly ruthless as he won't hesitate to kill his opponents and isn't against harming a great number of bystanders when necessary.