Wiz

While she used to be somewhat wrathful, ruthless, and competitive back when she was an adventurer known as the 'Ice Witch', she was still a very nice and altruistic young woman that fought against the Demon King's army so she could help other people and she eventually became a lich just so she could save her former adventuring companions, Brad and Rosary and even befriended her former nemesis, Vanir.

Once she became a lich, she became even nicer and compassionate than ever, despite the preconceptions surround the Liches in this world and her being a Demon King general, but still she was far more innocent and meek than before, apologizing quite frequently to people that generally do not deserve an apology.

Nonetheless, Wiz is still the nice girl that she used to be, always trying to solve conflict by peaceful means and does not get angry even when someone is actively hostile to her, never holding grudges. Her kind and pleasant personality and her occasional clumsiness has led to some people, such as Aqua and Vanir to bully her, but eventually even they start treating her with more respect once they spend more and more time with her.

The only way to get Wiz angry is by harming the innocent, the only reason she became an Demon King general in the first place was just so the Demon King's army wouldn't harm any bystanders and once she finds out that fellow Demon King general Hans had murdered an bystander, she immediately drops all neutrality and starts fighting with him.

When she was an adventurer, Wiz's forthcoming personality often made her blind to feelings of love, and that pushed men away from her. She was aware of that and started to worry about her love life. Before she became a lich, she used to be known as the Ice Witch in reference to her ice powers that she used to fight the Demon King's army.