Lady Hana is Masako Adachi's older sister, married into Clan Kikuchi in the cold north of Kamiagata. Her story runs through Masako's Tales, and records found in Sago fill in her unhappy married life.
Hana grew up with big ambitions and expected a grand marriage. She and Masako were never close. Ikeda turned out to be an abusive drunk, and Hana came to blame her sister for the life she ended up with.
Hana planned the massacre of Clan Adachi, recruiting everyone with a grudge against the clan. During the attack she fled with Masako's grandchildren, had them killed and faked her own death with a peasant's body dressed in her sash. She later founded a clan of her own inside the empty Kikuchi fort and had Omura's sons killed for blackmailing her.
Masako tracks her to the Kikuchi estate. Hana shows no regret and blames Masako for everything. Masako will not kill her and offers her tanto instead, and Hana stabs herself.