Wait... if the Hōrai Elixir is supposed to be a product of both Eirin's divine pharmaceutical knowledge and Kaguya's own ability – then does that mean prior to her exile, every instance of the elixir was made with Kaguya's help? Including the very same one Jōga took? 🤔
Maybe Kaguya also makes medicines, being basically Eirin's assistant back at the Lunar Capital.
