Sadly, Mira's LI cannot be chosen (Mira and her hubby are away on a second honeymoon for the entirety of CO lol). Mira's LI is also not explicitly stated so it can be whoever you wish.
Emma's will also not make an appearance but the choice is there to ensure that her sprite is consistent with the end of VO/the revelation in the VO Fan Book/extras if you chose the count.