I want to know the response for this because if she is the daughter of Cassandra I now want for Gengo do die in this story even more it is simply sick and vile because she is the result of Gengo's son rape of Cassandra because Gengo wanted for Ryuuchi to have a son with Cassandra, and now you got your wish bastard.
I will hold off in my accusations of Gengo because he is already past a scumbag in my eyes because if she is the daughter of Cassandra it will make Gengo look really good in the eyes of Kazuya, and I can even imagine what the others will think of him because I see that everyone supports Gengo for everything he has done but this guy has more skeletons in his closet than a corrupt politician.
I have to say right now Louis in Freezing is looking great right now because he started as a scumbag in that Freezing Arc but Gengo has no rivals right now, and I don't care if he has helped Humanity in the process there is a reckoning to be held by his actions, and he has helped Humanity but there is a price for his actions.