Hinata - New girl for breeding. (Pixiv Fanbox)

Leaf and Cloud make an agreement to mix the clans, Tsunade said she would send the girls to the Cloud, because the men of the Cloud are more successful at impregnating the girls, (why do they impregnate the girls more easily than the boys of Konoha impregnate the women of the cloud?). After the girls make lots of babies, they come back and can live normally. Tsunade predicts that the girls, even if they are married to Konoha boys, will always want to go on vacation to the cloud, because, from her own experience, she says that... well...