98278
1st episode of new anime adaptation of light novel series [My Stepmom's
Daughter Is My Ex aka Mamahaha no Tsurego ga Motokano
datta](https://japanese.stackexchange.com/questions/95406/motokano-s01e01-why-
when-being-romantically-affectionate-do-these-ex-romantic-p):

Widow Mineaki, father of male protagonist Mizuto, has recently married
divorcee Yuni, mother of female protagonist Yume. Mizuto both addresses and
refer to Yuni as Yuni-san while Yume both addresses and refers to Mineaki as
Mineaki-oji-san.

[![enter image description
here](https://i.stack.imgur.com/k5Fxz.png)](https://i.stack.imgur.com/k5Fxz.png)

[![enter image description
here](https://i.stack.imgur.com/hKtYi.jpg)](https://i.stack.imgur.com/hKtYi.jpg)

What exactly might this mean? Is it like Yume and Mineaki were closer than
Yuni and Mizuto prior to the wedding? I think of like how nee / nee-chan /
nee-san suggests being closer than -san eg in Kaguya-sama
[S01E08](https://i.stack.imgur.com/hKtYi.jpg) / [Chapter
39](https://kaguyasama-wa-kokurasetai.fandom.com/wiki/Episode_08) when Kaguya
wants Kei to address Kaguya as Kaguya-nee-san instead of Kaguya-san.

Or maybe it's the reverse: In Higurashi / Umineko, Battler Ushiromiya refers
to & addresses step-mother Kyrie Ushiromiya as [Kyrie-
san](https://myanimelist.net/character/18673/Kyrie_Ushiromiya) instead of, I
guess, Kyrie-oba-san.

> Rudolf's second wife. She is also one of Rudolf's business partners, always
> assisting him in shady dealings and keeping him in line when he gets out of
> hand. Kyrie and Battler have bonded more as close friends with a sibling-
> like relationship rather than mother and son, with Battler going as far as
> always calling her "Kyrie-san." She is known for her "flip the chessboard"
> mentality, influencing Battler in this regard. She had actually dated Rudolf
> long before his first wife Asumu, who she envies for marrying Rudolf while
> she was still going out with him. They were pregnant at the same time,
> though Kyrie's son was believed to have been a stillborn when Asumu gave
> birth to her son Battler.

Or maybe it's like okaa-san > Kyrie-san > Kyrie-oba-san ?
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question
politeness anime honorifics formality kinship-terms
Motokano S01E01: Addressing / referring your step-parents as 1st name-san vs aunt / uncle
Okaasan is used for only your mother. ~obasan is used for other's mother. ~san
is commonly used for people.

So, okaasan(otoosan)＞~obasan(~ojisan)≧~san. However I don't think it's that so
different.
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2023-01-23T11:27:48.767
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answer