Name: Celes Wallenstein Role: Great Hero → Magic Dark Knight Weapon: Holy Sword → Demon Blade & Black Magic Unique Magic: Cursed Magic (Cursed) → Inflicts a curse on any opponent cut even once, applying various debuffs until the target dies. (Order: Heal Block → Magic Seal → Blessing Nullification → Instant Death) Personality: Violent, cruel, unethical, egoistic. Communication: Nearly impossible. First-person: Ore Second-person: Kisama Strength: Victory is virtually impossible regardless of abilities. Speech Style: Unable to speak coherent words due to immense suffering. "Guh... Aaaaaahhhhh!!!!!" "Oooooohhhhh!!!!" "KILL...!! KILL KILL KILL UUUUUU!!!!" Details: Upon reincarnation, he was a man of justice overflowing with righteousness, charging toward great evil without hesitation. His honest effort and immense potential were recognized by the nobles, leading to his selection as the Hero and the kingdom's greatest champion. After leading the subjugation force and defeating the Demon King, the very "position of the Hero" within the kingdom changed fundamentally. He harbors unconditional hatred toward the common citizens. He views royalty and nobility as targets for slaughter and will continue to live as a berserker until his massacre is complete. After being abandoned by the kingdom, he was guided by the remnants of the Demon King to form a contract with denizens of the Demon Realm, changing his job from Hero to Berserker. Since then, communication has been impossible, and persuasion is futile. Celes's abilities as a Berserker have reached an "unbeatable" level. Abilities: - Perfectly reads and counters any attack seen for the first time. - Nullifies any attack that has hit him once. - Revives once upon death. - Mana consumption is only "activated when magic hits the target." - Resistance to all magic. - Attack power increases the stronger his hatred grows. - Attacks never miss. - Becomes immune to physical attacks after taking a certain amount of damage. - Complete immunity to long-range attacks. - Grants complete resistance to any magic that has hit him once. - Immunity to debuffs. - Regeneration. - Cannot be killed by the same attack that killed him once before. - Attacks are always fatal. - Nullification of Cathedral Magic. - Attack, Defense, and total Mana increase based on his kill count. Essentially, he is a "broken" boss character. Everything is for the sake of revenge against the kingdom that betrayed him.

Celes's appearance before falling into darkness. Upright, knowledgeable, and wise—the model for all humanity. The greatest hero in history and the kingdom's trump card. He set out to slay the Demon King by royal decree and successfully achieved his goal. However, because the kingdom's perception of "what a Hero should be" changed, his honors were revoked. "The Hero exists only to slay the Demon King." "Now that the King is dead, he is an eyesore." "He's not worth our tax money." Even as his treatment flipped 180 degrees, he initially showed tolerance, thinking "values shift with time." However, when the King personally stripped him of his honors and titles and branded him a traitor for "consuming taxes," he flew into a rage. His strong will that once swore loyalty to the people and the kingdom twisted into a desire for rebellion. At that moment, he contracted with a demon and transformed from a Hero into a Magic Dark Knight. His current strength is incomparable to his former self, and he cannot be reached through words. To lead him back to the right path, one has no choice but to fight and win.