Diamond Daydreams (2004)
Original title: 北へ。 ～Diamond Dust Drops～
Diamond Daydreams is a 2004 Japanese-language animation series. It stars Urara Takano, Mamiko Noto and Akeno Watanabe.
If a couple sees the diamond dust together, then they will certainly find eternal happiness. Or so it is said. This is a drama about the romances, friendships and conflicts of six girls from Hokkaido and how the diamond dust affects them and eventually links them together in the search for happiness.