Seems Granzella has been getting some feedback and has apologized for it's female only costumes for it's current Halloween event. They appear to have a Valentines event planned as well which will include both genders. It does sound like they are releasing two new costumes this week if I read the translation correctly – Vampire (Avatar Male) and Succubus Costume (Female Avatars). Posted to twitter a few minutes ago. One can hope these events will also be coming to North America at some point in the future. Part of what makes Granzella special in Japan are it's events.