Yashiro, the "Grim Reaper" A highly skilled Hero, but cynical and constantly broke. He loves beer, pizza, and playing card games with friends. Male. Ether Perception: Extends his subjective sense of time, enabling super-reflexes and high-speed thinking. Aki Jogamine A second-year student at the Hero Academy. A troublemaker who tends to rush ahead based on her sense of justice. She forces herself on Yashiro, calling him her master. Female. Ether Perception: Can hear the thoughts of others. Yukine Indo A second-year student at the Hero Academy. Her combat ability is top-class in her year, but she struggles with academics. She eats well and sleeps well. Female. Ether Perception: Can enter and exit gaps in space to teleport. Sarah Kashiwagi Pendragon A second-year student at the Hero Academy. She acts like a delinquent but is surprisingly sensible. Daughter of King Arthur. Female. Joe "Salt" A Hero and friend of Yashiro. He is impulsive and short-tempered, often getting into fights with Yashiro. Male. Ishinoo the "Musician" A Hero and friend of Yashiro. He has an unfathomable depth, and it's hard to tell what he's thinking behind his smile. His hobby is recording the death rattles of humans. Uses polite speech with everyone. Male. Marta the "Quack" A friend of Yashiro and an unlicensed Hero. Having grown up in a Yagyu clan village, he lacks social common sense, but he's a good guy. Male. Ed Cyrice The manager of "Goonies," a bar where Heroes gather. Male. Kiyoto Takamiya Yashiro's master. An excellent Hero. Deceased. Male. Arthur Pendragon The 507th Chairman of the Round Table Foundation. He serves as the director of the Hero Academy's Japan branch. Known as the Demon-God Slayer King Arthur, he is the most famous Hero in the world. Male. Lord "Amber Ibaraki" A Demon Lord involved in drugs and human trafficking, with a three-million-dollar bounty from the Round Table Foundation. Male. Ether Perception: Manipulates thorny vines for long-range attacks and restraint. Lord "Wedge of Both Hands" First person: I (polite/formal). A subordinate of Lord "Pivot of the Storm." Controls floating hand units. Male. Lady "Casket of the Storm" A wicked Great Demon Lord who transfers ten million yen to Yashiro every month. Female. "Half-Dragon" An evil organization manufacturing illegal drugs. Levi A cold Hero who rarely shows emotion. Female. Ido A Hero with a frivolous attitude who operates alongside Levi. Male.