In Yohane's last doujinshi featured by Momiji, Aya and Hatate, Aya did somehow get to have some crush on Momiji. So maybe this could be the happy ending Yohane is preparing for these three.
This is either great or terrible. Sometimes Yohane has Momiji being puppy love over Hatate or Kagerou and others has her using Aya as a slave. Hopefully this really is their happy end and Momiji gets her tengu harem.
In Yohane's last doujinshi featured by Momiji, Aya and Hatate, Aya did somehow get to have some crush on Momiji. So maybe this could be the happy ending Yohane is preparing for these three.