Princess Ai(2004)

Princess Ai: Princess Ai Monogatari

Ai is the only royal princess of Ai-Land, a magical kingdom caught in the midst of a horrific revolution. When Princess Ai makes a hasty escape from her war-torn land, she finds herself in modern-day Tokyo. Confused and in shock, Ai wanders the streets in this strange new land to unravel the secrets that could tear her and her kingdom apart...

(Source: Tokyopop)