User blog comment:Fan\\sign/A formal arguement concerning the nature of Tsukasa/Subaru at the end of .hack//sign/@comment-6907100-20200306171548

They would be bisexual if anything...and that only applies to Subaru. Considering you keep saying "Heterosexual of the same gender", I feel like you don't really understand sexuality at all. So...if Subaru likes Tsukasa in male or female form, then that would make her either Bisexual or Pansexual. Tsukasa only shows interest in Subaru, but we never know if she prefers men or not. This would mean she is either Bisexual or Homosexual (could also be Pansexual). The fact that the two of them end up in a relationship would place them in a homosexual relationship since they are of the same gender.

But here's the real kicker: It doesn't even matter. They are two women who love each other, and this develops into a relationship. In this day-and-age it doesn't need to go any further than that. :)