Muneyuki und die Manyus haben Chifusa aufgespürt. Er nimmt ein paar Attentäter mit sich und will Chifusa einfangen. Es kommt zum großen Finale.
Muneyuki and Ouka lead a batallion of four Manyu assassins to capture Chifusa and Kaede. The two, along with Tsuhuya Munemori, face off agaisnt the assassins, defeating one of them before being outmatched. However, they are saved by the timely arrival of Kagefusa and Kokage, who join in on the fight. When the fight begins to get too rough, Chifusa's grandmother tells her to take Hazuki away with her to protect the last child of the Munemori bloodline; though initially hesitant, Chifusa and Kaede agree and flee with Hazuki. However, they are cornered by Ouka, who wishes to settle her old score with Chifusa as well as defeat her to gain status among the Manyu. Ouka initially has the upper hand in the fight, but halfway through it, Chifusa manages to unlock the Breast Flow by remembering how she had earlier attained a mother's heart...by breastfeeding Hazuki, which allowed her to have a motherly bond with one of her kin.
胸杜の里に現れた胸幸は、秘伝書を返上し、裁きを受けねば胸杜の血を絶やすと宣告する。戦う覚悟を決めた千房は、露葉と共に魔乳きっての刺客集と剣を交えるが、徐々に追い詰められていく。そして全ての決着をつけるべく、千房の前に桜花が立ちはだかる。果たして千房は乳流れを極め、乳の世を正すことができるのだろうか……。
Muneyuki et Ôka dirigent un bataillon de quatre assassins pour capturer Chifusa et Kaede. Alors que l'affrontement fait rage, nos héroïnes semblent en désavantage. Fort heureusement, Kagefusa vient prêter main-forte à sa sœur et permet à cette dernière de s'enfuir, mais ce ne sera pas si simple.
La llegada de Muneyuki al pueblo, acompañado de Ouka y varias asesinas, lo precipita todo y corta el aprendizaje de Chifusa.
