Leo Demonheart

Leo Demonheart is the former hero who denounced by the human world after saving them from Demon Army because of his unparalled power. In Tokyo 2060, he was created by humans to fight back the demons. He is the strongest of all of the Twelve Demonheart Series. He is the titular male protagonist of Yuusha, Yamemasu series.

Appearance
Leo have deep red eyes and black hair.

Pre-Creation
Initially being created as a weapon by Humans to beforce against Demons coming to Human world by a hole, Leo got no emotional feelings other than killing the demons and protect the humankind. He rather used to have composed, carries an expressionless face most of the time and keeps a cool head in decision making and planning.

After meeting a certain demon, he changes drastically. Leo befriends with him as being his first friend. The demon taught him about human feelings and how he should stop living on other orders and should live for himself.

Post-Creation
As being the sole survivor among the Twelve Demonheart series, he gradually changed, gaining a high ego for being a hero. Even after saving the mankind, he sticks to the mission of saving humans and that made him went to the demon world. From generations to generations, Leo has been famously proclaimed as Hero making him "The Strongest Being". Undoubtfully, Leo had came to the conclusion that he has the hunger of being a hero and likely that because he get excited on killing someone.

As the times passed, Leo finally defeated the demon lord, Echidna, but that ends as a betrayal. Leo got denounced by humans because of his monstrous power. This happens to first time that Leo hold a deep grudge against humanity. Leo then get blinds in revenge that he wants to destroy the whole world that he saved million times.

Background
Leo is born as one of the Twelve Demonheart Series to save humans from the attack of demons. First, he was frail and the weakest of the series. But he himself empowers thousands of demons single-handedly and became the strongest being in the whole world.

Abilities

 * Crimson Comet: A High level attack magic
 * Twelve Layers Of Barrier (Statis)': A High level magic which can nullify or seal any type of magic regardlessly.
 * Voice Changer: A magic that allows to change your voice to anybody's.
 * Metamorphisis: A magic for disguise.
 * Clearance: A magic which can heals diseases or curses.

Rare Magic

 * Mirage Eye: A magic technique that can send the information that was seen as it is on it's eyes to it's caster.

Quotes

 * "Eat, sleep and play, I can laze around as I like here!"

Trivia

 * Leo inherits the power of Hero by Philosopher's Stone. Though it doesn't mean that anyone could get the powers on touching the stone or whatsover, Leo was able to hold the power due to his abundant life experience.