So all the women we have seen so far are weeping and clingy with zero characterization.
It reads like an 80s anime, was written in the middle 90s and.. really hasn't gotten 'good' yet.
Ryu Mitsuse was also responsible for the mess that was Andromeda Stories and you can certainly see the same theme with the whole "seeding the earth" going on. Here it seems to be aliens, in Andromeda Stories it was the Myurat twins.
If Plato/Orionae were a woman, the book wouldn't have been translated and people would be calling her cardboard. While not like an otoge protagonist where the guys are take center stage and she gets to be acted upon, Plato is just... there's nothing there. There is no character. The plot is that Earth was an alien experiment and past and future are overlapping. It's not making any sense either
Then Plato dies because he hears something. But don't worry, he's been brought back to life with TECHNOLOGY.
Then we switch to Siddartha? He wasn't to go to the Brahmaa but Udakka is trying to stop him because well, shit ain't good and Siddartha is a prince and.. what does this have to do with anything?