

What if Esdeath has a little sister?
Let's say hypothetically Esdeath has a little sister and survived with Esdeath. For this scenario, Esdeath loves her little sister (A bit more than Tatsumi).
The Little Sister is as strong as Kurome and have a teigu.
Scenario 1: The little sister is cruel and cold similar to Esdeath but can be redeemed.
Scenario 2: The little sister is kind and naive but Esdeath still loves her and the little sister won't betray Esdeath.
You can also have your own scenario with the premise.
Image source: Left 4 dead 2 with workshop mods
Map: Buried Deep