(Ban and Zhu) The Perfect Partners

The eldest child in the Senju family is a girl, the second child is a girl...

When Senju Butsuma learns that an Uchiha boy has won his daughter over, he flies into a rage.

When Uchiha Tajima learns that a little Senju girl has won his son over, he flies into a rage.

"Let's fight to the death, Uchiha Tajima/Senju Butsuma!"

The older siblings:

Brother: "What do you mean, 'won her over'?! How does that watermelon-headed guy look like a girl?!"

Sister: "Don't worry, Father. Madara can't beat me at skipping stones!" She flashes a toothy grin. (Madara: ...)

The younger siblings:

...It's not like I'd follow them if I weren't worried that my brother/idiot sister would get tricked by that woman/man.

After the alliance:

The Senju: "Uchiha, hurry up and marry into our clan!"

The Uchiha: "Who'd marry in, wait, Clan Leader, why are you walking over there?"

The third installment in the gender-swap series! Madara (male) x Hashirama (female), Izuna (male) x Tobirama (female). It's a sweet little happy ending!