"Me jogue aos lobos, e eu AIAIAI o lobo me mordeu"
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Age of the characters (Usan's arrival at the butterfly mansion):
Usan: 15 years old
Shinobu: 14 years old
Kanae, Sanemi, Giyu: 17 years old
Rengoku: 16 years old
Aoi, Kanao: 12 years old
"The girls from the butterfly mansion": 4 to 6 years old
Ubuyashiki's daughters and son: 4 years old
I hope this helps you see how the story is currently progressing; it's not necessarily canonical with the original.
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