Thank you for sharing and translating this.

It cast an interesting light on what happened, but it's still not clear how it would have worked. From what I understand, by striking the mortal blow on Cylva, Ardbert would have gotten his Light Crystal. Wouldn't that tipped the balance toward Light even further? How can Cylva win by being killed and lose by being alive? How and when did Ardbert got his Light Crystal? What triggered the flood if Cylva's plan failed?