Sennen No Yuki
Other titles :
一瞬間のロマンス, 千年の雪, 千年之雪, เจ้าหญิงหิมะพันปี, A Thousand Years of Snow, Isshunkan no Romance, Millennium Snow
Author(s) :Hatori Bisco
From Viz: Seventeen-year-old Chiyuki Matsuoka was born with heart problems, and her doctors say she won't live to see the next snow. Touya is an 18-year-old vampire who hates blood and refuses to make the traditional partnership with a human, whose life-giving blood would keep them both alive for a thousand years.