Sekirei aging is strange. The flashback to the island shows full grown disiplinary squad, even though the rest of the Sekirei are still embros/zygotes.
I get the feeling Sekirei age quickly to maturity, and then their aging process slows down.
Kazehana is 20. Homura is younger than this by who knows. Certainly No. 01-05 were mature while he was still asleep. And then they get younger and younger from there.
It doesn't make sense unless its a quick growth then slow aging.
Kuu-chan may be old enough to marry her onii-chan sooner than we first thought
