History: not much is known about Ryu apart that he was born in Japan and moved to Italy to become a member of the Vatican. He rose through the ranks and soon became an exorcist. His talent and skill were so great many, believed that he was an angel send by god. But it was mistaken as Ryu was simply that talented.

In the great war, he fought against many opponents, gaining the title of the Crimson hero as well as some others. His skill was recognized by gods of other mythologies such as Ares from Greek as the two had fought each other.

In his late thirties, god wanted to keep Ryu by his side as he was a major asset for heaven. So he gave Ryu the original Holy Grail which Ryu drank the liquid from which gave him eternal youth which allowed him to live for more than 300 years in his prime.

In the great war, he met and fought against Luminous Asmodeus, his rival which he shared a rivalry with for more than 300 years. While Ryu was stronger than the super devil. He never killed her as she was the only one who that gave him a good fight.

After 300 years of fighting, he fell in love with Luminous and secretly married each other without anybody knowing, except for the original Asmodeus who supported their relationship. After spending years with each other Luminous got pregnant but got sick as well. To not risk the safety of the child. Ryu decided to steal the Holy Grail to heal his wife which worked but he was seen by Gabriel who reported to God. God became furious and launched an attack at them. Ryu rebelled and attacked the heavens alone. He pushed back the Seraphs and fought God personally. However he lost and died against him but weakened God enough that prevented him from attacking the underworld himself as the only way for him to heal from his previous encounter with Trihexa was gone leaving him to exhausted.
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Powers and Abilities:

Immense strenght: Ryu was the strongest human in the world of his time and his strenght was comparable to gods. He was stronger than the 4 Seraphs combined and only god himself was strong enough to stop him.

Immense fighting prowess: Ryu was hailed as the weapon of god which he earned of his supreme fighting skill and technique. He is a master of any weapon he never wielded and was given the title of wargod after his victory of Ares.

Natural born holy/demonic weapon wielder: Ryu was a special case where he can wield both holy and demonic weapons at the same time. He wielded many legendary weapons but stuck to his 2 favourite, the demonic sword: clarent and the holy spear: Rhongomyniad.

Eternal youth: After drinking from the original Holy Grail. Ryu stayed at his prime for more than 300 years.
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Equipment:

Clarent:

A very powerful demonic sword that was used by Mordred Pendragon

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A very powerful demonic sword that was used by Mordred Pendragon. It is a sword known as the sword of peace and later the coward's sword. It is a sword on par if not stronger than the original Excalibur and was the blade that destroyed the Excalibur into fragments.

• Clarent armor:

An ability of the sword that it grants the user to summon a silver armor with red highlights

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An ability of the sword that it grants the user to summon a silver armor with red highlights. The user can summon parts of the armor or fully wear it when they desire it.

Rhongomyniad:

The Holy spear of king arthur and the second strongest holy spear in existence

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The Holy spear of king arthur and the second strongest holy spear in existence. It allows the user to fire large beams of light as well as pierce through any barrier.

The Holy Grail:

An holy cup that grants whoever drinks the liquid from it eternal youth as well as the ability to heal from any wound and sickness

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An holy cup that grants whoever drinks the liquid from it eternal youth as well as the ability to heal from any wound and sickness. God used it to heal from his battle with Trihexa but was still exhausted and weakened. Ryu used it to obtain eternal youth and to heal his wife from her sickness when she was pregnant.
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Trivia:

Ryu was the strongest human in the world around 500-600 years ago.

He is the first person to both wield both a holy and a demonic object at the same time.

He was a hero confirmed by the humans and later in heaven.

His name means dragon in Japanese which combined with his last name Hyoudou means: dragon soldier

His appearance is based of: Jin Toujou from testament of devil new sister

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