consegui pegar esse conhecimento com a serafim, talvez seja um problema na tradução "Pode ser obtido através da [Missão Principal de Edania: Magaia] com a classe Valquíria"

The information is incorrect stating that you need to do the questline through Magaia with a Valk.
After running through the entire questline on a Valk it did not share the information for the knowledge.
Using a Seraph running through half the Magaia questline up until History of Iron Priest I was able to get the knowledge for Sophia Edelweiss.

Sadece Seraph ile alınabilir Valkry dahil 5 farklı karakterle alamadım Seraph ile aldım.