>>3542717It was something akin to "You bastard... You had a daughter the whole time you've been experimenting on children?"
During that time the party was not aware of Prushka's past. Bondrewd took her in when she was roughly 5-7 years old (assuming from her size, similar size to Kiyui) But if Nanachi were to assume she was his actual daughter, it the assumption that she was around during the time of the experiment would be rational.