Ages of the Ninningers

[takenoko]

I'm trying to figure out the age range of the Ninningers. Like a well craft logic puzzle, I think we can actually figure this out.

Takaharu
Yakumo
Nagi
Fuuka
Kasumi

So what we know:
Takaharu > Fuuka since they're siblings
Yakumo < Takaharu since he refers to him as Taka-nii
Kasumi ?> Takaharu since she calls him Takaharu-kun
Kasumi ?> Nagi and Fuuka since she refers to them as Nagi-chan and Fuu-chan
Nagi ?> Yakumo since Nagi calls him Yakkun
Nagi ?> Takaharu since he refers to him as Taka-chan

Not sure about the last few since they might just be terms of affection rather than strict looking down upon a person for their age. But still, Kasumi just seems like the oldest. Plus she seems highly skilled in ninjutsu.

So my guess at the moment is:
Kasumi (Oldest)
Nagi
Takaharu
Yakumo
Fuuka

[xiiliea]

My guess is

Grandfather>Takaharu
Grandfather>Yakumo
Grandfather>Kasumi
Grandfather>Nagi
Grandfather>Fuuka
Grandfather>Father

I hope I'm right!

[takenoko]

Grandfather said this: Young people are whippersnappers!

[Kogashi]

Seems someone isn't quoting their grandma, very disappointed

[Diviana]

I feel like it's this order.
Kasumi-Takaharu (We know that Kasumi is a college student but I'm not sure how old Takaharu is since he went traveling)
Yakumo (He calls Takaharu nii-chan)
Fuuka
Nagi (Since Nagi never finished his ninja training is the youngest, he feels like the youngest.)

[Lunagel]

Red: 20
Blue: 19
White: 17
Yellow: 16
Pink: 19

So says the official Ninninger website

[veryverydanger]

I was beaten to it! TV Asahi usually posts ages if they have canon ones, though. Always a great place to check.