Transmigration: Loved by the Phoenix [bxb]

After being transmigrated into the body of something not quite human, Kai's first goal in his new life is to find civilization. However, things go not quite as expected when he is captured and sold as a slave. It's okay though, since the people who bought him only want him to substitute their son for the dangerous parts in some marriage trials for an aristocrat. No biggie. Kai can handle it.

It's a bit unexpected that said aristocrat is a male, but it's not like Kai's the one getting married. He just has to play substitute and pose as said nobel's teddy bear every now and then,

However, things turn complicated when what started out as friendship threatens to become something more, and when said nobel ends up being something way more dangerous than a human.

Because when a Phoenix loves, it burns everything else to ashes.