Flonne is an angel trainee and strong believer of love who is sent to the Netherworld to assassinate King Krichevskoy, only to find out that he is already deceased. When she learns of Laharl's refusal to believe in love, she becomes Laharl's follower in order to find good in him. She is very naive and can go on the same topic for a while. She worries about everyone, but doesn't seem too hesitant to take down a necessary opponent.