Let's get some actual discussion going.

The summer banner has been the longest ongoing banner along other seasonal Japanese festivities (Christmas, New Year, Brides, Halloween...). The difference is that there are two banners of it each year.

What actually popular female characters (outside of Engage, it's too recent) don't have a Summer alt yet? I'd say
>Lysithea
>Annette
>Minerva
>Cecilia
>Ninian
>Lethe
>Cherche
>Severa
>Anna
>Azura
>Catriadev hasn't striked yet
>Neither has Karlahdev, Nailahdev, Ilyanadev or Kagerodev
>Maaaaaybe Deirdre, Julia, Arya or Larcei

I'll be honest, names kept coming to my head only to realize they were already part of a Duo or Harmonic