As in all dreams, things don't need a backstory to make logical sense. Thus, there is one tall dhampir walking with an equally tall Kanji on the way to the Chinese Diner Aiya.
"I apologize for my tardiness. Alas, I couldn't find anything to replace my cloak and there's a tear in it," said Alucard. "I'm afraid I don't have the resources to repair it myself."