The Era of Bahamut: Book one.

The story follows Ilyas Al-Bey, a Dhampire living inside human walls, as his somewhat average life of bounty hunting turns into a mission to protect everyone he holds close. When a vampire makes its way inside the walls, Ilyas, after facing him, had become the subject of questions from the Ashen Sancti knights, hoping to keep Falcia safe. However, when the dragon reborn decides to take an interest in Ilyas, he finds himself in more exciting adventures.