From Megchan's Scanlations:
Arisa Kurosaki lives on a coffee plantation in Hawaii with her parents, Lu Mei and Ken, and her younger brother Shinji. With her ability to sense the spiritual power of mana, she has often been called the dragon's daughter, but for the most part she's just an ordinary teenage girl. That is, until a boy claiming to be the son of her parents' old friend comes to Hawaii from China just to warn her that she's in danger...