The Ancient Magus' Bride: The Boy from the West and the Knight of the Blue Storm (2021)

Gabriel, an ordinary boy who just moved from London, was bored with his surrounding, until one day he saw a wisp of purple smoke from the window of his house. At that time, he hurriedly chased the smoke, looking for any kind of freedom and fun. Though they should not, the world of boys and wizards soon intersect...