Chapter 1048: The One Who Protects Everything.
After the conversation between Mizuki and Victor, small things changed. Mizuki was seen smiling more often, as the sense of burden she carried had completely disappeared, and she became more approachable.
This was a barely noticeable change that only Victor's Wives perceived, as she didn't change her attitude towards her own Daughters.
As Mizuki mentioned, it was an issue she had already resolved, and she was no longer a child. However, it was good to let these feelings out. Overcoming the feeling and exposing it to someone trustworthy was completely different.
Even Dragons needed to 'vent' sometimes... In fact, Blood Dragons, which were a mix of Dragon and Vampire, especially needed to vent. They were a very temperamental Race that could become unpleasant if they didn't have at least minimal control over their emotions.