One of my main things I don't like about Fire Emblem supports sometimes is the Gen 1.5 characters(or Kamuisexuals), don't get me wrong, Scarlet & Izana are two of my favourite of Fates' characters, but in general, 1.5s usually get the bench due to their forgettableness, such as Reina, who doesn't appear again in the story of Birthright after her text in the Chapter she joins. So this thread is for ideas and things about possible support conversations between Gen 1.5 characters, some of the male 1.5s possible children, and ideas to flesh them out as characters.
For example- In Subaki and Reina's supports, they would constantly compete with each other to see who the better flier is.