Mariabelle

She once had begun to dislike humans from never leaving her elven forest for so long, but she had learned to become accustomed to the somewhat-airheaded Kazuhiro after spending so much time with him. She travels to modern Japan and back after getting dragged into his ability to cross between worlds, and seems to enjoy the trips after falling in love with Japan's cuisine and culture. Goes by the nickname, Marie.

(Source: Welcome To Japan, Ms. Elf! Wiki)