I love the development here. Aqua was driven to vengeance because of Ai. And Ruby was driven to vengeance because of her doctor. He must really mean a lot more to her than Ai. I'm so curious what would happen if she learns her first love is now her brother. Whatever Aka has in store, incest or not, I'm just so into this plot I don't even care anymore. I just wanna know what happens next.