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In the anime The Quintessential Quintuplets, the quintuplets have halluces separated from Index toes.

Yotsuba's feet, from Season 1:enter image description here

Itsuki's feet, from Season 2:enter image description here

It's said that in the past, Japanese wear wooden sandals and therefore get this kind of separation. However, in the anime, the quintuplets don't wear shoes at home.

At their fancy home, from S1: enter image description here In the cottage during vacation, from S2:enter image description here

enter image description here

enter image description here

My guess is that they wore wooden sandals or the like back in their childhood and formed the separations. But childhood isn't very long, babyhood subtracted when one doesn't wear any shoes. Can wearing wooden sandals in childhood form a lifelong separation between the hallux and the Index toe? How long does it take to form such a separation by wearing wooden sandals and the like?

If the above idea doesn't make sense, how can a modern Japanese form such a separation?

Michael
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  • Comments are not for extended discussion; this conversation has been [moved to chat](https://chat.stackexchange.com/rooms/138600/discussion-on-question-by-michael-can-wearing-wooden-sandals-in-childhood-form-a). – Dimitri mx Aug 18 '22 at 08:27
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    Related on Biology.SE: [What's the terminology for this kind of deformity?](https://biology.stackexchange.com/q/109044/9694) – Aki Tanaka Aug 18 '22 at 16:48

1 Answers1

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Partial answer:

Maybe this a false alarm.

At least, this may not apply to Itsuki s1. See S01E04 when Itsuki, Fuutarou and Raiha are taking a photo.

enter image description here

S1 and S2 obviously had different animators, so this may be an animation adaptation thing.

BCLC
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