Hanako is the younger sister of Adell, the main protagonist of Disgaea 2: Cursed Memories. She and her brother Taro were born demons, due to her parents being turned into demons by Overlord Zenon's curse, but unlike Adell she does not desire to break the curse. While young, she has great aspirations to be a sexy demon lord like her idol, Etna.
Hanako is annoying and cocky, especially towards Adell. She is a great cook and is extremely knowledgeable about the most random thing, which she obtained from reading her father's many books.
In Disgaea 2: Dark Hero Days, an older version of Hanako was added. She is the apprentice to Etna and Laharl's vassal.
She was also released as a DLC playable character in Disgaea 3: Absence of Justice, where she appears as a boss who wishes to become the Dean, replacing Mao.