A girl from another planet goes to Tokyo as an Ijigen Counselor, or an Alternate Dimension Counselor. She meets many new people and experiences many new things, including love.

A boy whose father is deeply involved in the research and sturdy of Fairies thought that he could never be able to raise a fairy again. But one day, a Fairy appears in front of him, and not just any normal fairy, the legendary Fairial...
(Source: Mangaupdates)

14-year old Shichiri Tasuke is your ordinary junior high school student- well, sort of. His life is a little lonely, since his family has left him alone at home while they go travel the world over, only occasionally sending letters and postcards.
This lonely and uneventful life is shaken up the day Tasuke receives the magical Shitenrin ring from his father in China. From out of this ring appears Shao Lin, the Guardian Angel Getten. She proclaims that she is here to protect her new master from all forms of danger and will stay by his side forever.
But having been locked in the Shitenrin for hundreds of hears, Shao knows nothing on the modern world. Sometimes it seems she causes MORE problems than she solves. Now, Tasuke must learn how to handle this beautiful, naive and magical angel.

In this city, there is a legendary thief. An eccentric thief who lived down through the generations. A story that's told for generations. His name is Mugensai Ishikawa.