COTE X Re: Zero: A Demon's Isekai

Kiyotaka Ayanokouji.
The Masterpiece of the Whiteroom, the Demon of the 4th generation, the monster, and so much more. He had lived his life striving to reach the top, and he had. He had achieved it all, except for one thing. The only thing he truly desired.

Freedom.

However, that search was finally over. Finding himself in another world, away from his father, Kiyotaka was ready to simply rest. But, not all was what it seemed to be, and this world hid secrets that no one could have anticipated. And how, or why is Kiyotaka's life tied to some random guy called Subaru?