Masquerade (1998)

College student Gen Hiraga has recently lost his parents, and moves in with his wealthy but eccentric grandmother. However, he starts to remember dreams of a beautiful woman, dreams he's always had but forgot. He eventually learns of an ancient family secret: his family suffers from a curse that forces every Hiraga to lead a short life and suffer an untimely death. He also learns another, intertwined family secret - the Hiragas possess the elixir of immortality (a suspicious paradox, considering their short lives) within their body, in the form of a golden liquid secreted from their reproductive organs. Gen must now find a way to absolve his family and himself of this curse, as well as deal with a handful of women who are unable to resist his good looks - as well as a few who know and lust for his golden liquid...