Ryou and Albedo

Ryoutarou Takumi the immortal human and Albedo the retired of legendary demon king fighting together to defeat enemies together and they start become more friendly each other cuz albedo wanted to change his life better than his past as the feared demon king and the most cold hearted person. Ryoutarou Takumi and Albedo are same person but different personalities and Ryoutarou Takumi are albedo's reincarnation but he have dark side and that was his past as albedo but Ryoutarou Takumi don't remember his past life but he finally remembered after albedo split with his body and become his clone but different personalities. They decided to become friend with each other to become better than before and start working together to fight enemies