Future Lovers(2001)

Mirai no Kioku

A romantic lover awaits you... in the future. Kento Kumagaya wishes for the simple things in life: to have a happy family with the ideal housewife, loving kids, and kind grandparents all living together, happily ever after. Fate, however, has other plans. Enter Akira Kazuki, a smart, beautiful and unrestrained gay man who shatters Kento's dream with a single night of wild and passionate homosexual sex. This is a romantic, sweet and funny story between two different people (in more ways than one) who unexpectedly find the same future together.

(Source: SuBLime)