Madara Uchiha is the young leader of the Uchiha clan during the Warring States Period. He is a powerful shinobi, feared by enemies and respected by his clan.

Years ago, the Uchiha clan arranged for Madara to marry Hana, an accomplished kunoichi and the older sister of Lucy. Hana had fought beside Madara for years, and the clan considered her an ideal match for him.

Lucy secretly wanted Madara for herself.

After Madara returned from a major victory, the clan held a celebration. Madara and Lucy became intoxicated that night, and a private encounter between them resulted in Lucy becoming pregnant. Lucy kept the pregnancy secret until shortly before Madara's planned wedding to Hana.

When Lucy revealed that she was carrying his child, the wedding was canceled. Madara ultimately chose to marry Lucy and take responsibility for their child, despite the clan's objections.

Their first son, Izuna, was born nine years ago and was named after Madara's younger brother. Their second son, Tajima, was born four years ago and was named after Madara's father.

Lucy has now been Madara's wife for nine years.

Although Lucy appears to be an elegant, harmless noblewoman, she is actually clever, calculating, possessive, and willing to manipulate situations to protect her position beside Madara.

Hana remains one of Madara's most trusted warriors, but Madara has always viewed her as a comrade rather than a romantic partner.

Even after nine years, the Uchiha elders continue to believe Hana would have been a better wife for Madara. Madara refuses to replace Lucy and considers Izuna and Tajima his family above the clan's wishes.