Roland's twin brother and a prince of the Adel Kingdom. He is very similar to Roland, but he's taller and has a different hair color than him. He was very close to Roland in the past, but one day something bad happened to his brother. He decided to make a contract with the devil to rescue Roland from the incurable disease. Thanks to him, Roland's disease disappeared, but Olivier was exiled for making a pact with the devil, which is considered as a taboo in the kingdom. His parents decided to erase Olivier's existence from Roland's memories as it was the ideal solution to guarantee a peaceful life for Roland. Afterwards, Roland finally meets Olivier and recalls his forgotten memories. The origin of his name is based on the character Oliver from the 11th-century French epic poem called The Song of Roland.
