Seven high school students were summoned from Earth to become the legendary heroes destined to save another world. There was only one problem. The ritual was only meant to summon six. Kain was the mistake. While the other six awakened divine blessings and were hailed as humanity’s saviors, Kain received nothing. No blessing. No talent. No place among the heroes. The friends who once promised to stay by his side slowly turned away. The childhood friend who swore she would never abandon him was the one who left him behind. Cast aside as the powerless seventh hero, Kain disappeared from the kingdom without a trace. For years, he was imprisoned beneath the royal capital and used as a living experiment. His body was torn apart, rebuilt, and broken again. When the kingdom had learned everything it wanted from him, it sold him to corrupt nobles, who treated him as a disposable plaything before throwing him away into the depths of a slave camp. By the time Kain turned eighteen, the boy