Ok I havent read manga.
Got introduced to the "Ghost" through the first animated movie and then faithfully followed animated and live action from that moment on. So I cannot say this OVA was not fun to watch. But the sexualization of Motoki and fan servicing never stand fine with me... From that point of view I was disappointed... It is sad to see that if nowadays strong women and bisexual/gay women are not killed off and done with, than their new destiny is to be turned into a fan service content... While male character is always respected, women are stil degraded immensely!