So lately I've been frustrated with how the Kanokari story has been progressing. I began searching for another Miyajima work and stumbled upon The Shiunji Family Children (うんどもたち) anime. It is available on Netflix and I tried watching it. I think it is an okay anime overall but the one notable thing I really liked is how Seiha Shiunji (うん せい), one of the Shiunji daughters, talks. She has this really polished way of speaking that I'd like to learn from.

Thus, I'll try to break down every line spoken by Seiha in season 1, starting from Episode 1. I hope by doing this I can shadow how she talks. I'm still learning Japanese though, so I might be wrong in places. For guidance, I'll use Netflix's Japanese subtitle and its official English translation and add notes to help me understand better. I'll also include timestamps and lines from other characters whenever necessary for context.

So, treat this as a Seiha clips transcription kinda. With that out of the way, let's begin.

PS: Hover over any Kanji to see its furigana

First Scene, Introduction

Seiha Shiunji Season 1 Episode 1 Scene 1 Photo 1

Context: The two Shiunji brothers, Arata (あらた) and Shion (おん) are discussing something in the living room and suddenly the Shiunji Sisters come in.

[01:27] おう: なにコソコソはなしてんのよ、おとこふたあさっぱらから。
Ouka: What are you guys talking about? Two men are here so early in the morning.

[01:36] せい: 1わりしゅ、3わりせい、 6わりわいだんというのがだんせいどうかいとうけいですし、 ないようしてるべしでしょう。
Seiha: According to statistics, 10% of conversations between men is about hobbies, 30% is about the opposite sex, and 60% is about erotic topics. You can imagine what they are talking about.

{...some dialogues later. Basically Shion jokingly said they're talking about Ouka's growing Feminine side. Ouka gets angry and commands the dog Velzekyll to bite Arata...}

Seiha and Ouka Season 1 Episode 1 Scene 1 Photo 2

[02:33] おう: だんからまいをエロいてるてんばつよ!
Ouka: This is retribution for looking at your sisters with a dirty gaze.

[02:36] せい: たしかにそれはわるいったらないですね
Seiha: That is indeed disgusting.

{...Ouka laughs...}

[02:41] せい: おうわらいすぎでは
Seiha: Ouka, your laugh is too dramatic.

[02:45] あらた: だれがおまえらのからだなんかエロいるか!
Arata: I never look at you with a dirty gaze!

[02:49] せい: へえ... ことのとのことがありながら、よくそんなことを
Seiha: Yeah? After what happened with Kotono, you still have the guts to say that?

{...some dialogues later...}

[03:22] ばん: それにまいにちこんなかわいいたちにかこまれてるんだからそれくらいぜんなことよ
Banri: Being surrounded by cute girls every day, that kind of thing is natural.

[03:29] せい: ぜんではありません。きんしんそうかんでんおよぼすあくえいきょうせいぶつがくてきじょうしきですし、まいれつじょういだくのはしゅぞんかんてんからてもごうです。
Seiha: Not at all. Incest causes negative genetic effects, which is biological common sense. Having dirty thoughts about sisters is also unacceptable from the perspective of race continuation.

[03:42] ばん: ヒトはがくだけではかたれないものよ。ごうひめにもきなひとひとぐらいできるころじゃないかしら
Banri: Humans cannot be analyzed by science alone. Shouldn't "Princess Logic" have someone she falls for?

[03:49] せい: べつにいません
Seiha: There isn't anyone.

Banri, Seiha, and Ouka Season 1 Episode 1 Scene 1 Photo 2

[03:50] ばん: お〜お〜あかくなっちゃって。うちのじょさんじょはうぶね
Banri: You are blushing. Our family's second and third daughters are so innocent.

[03:56] おうせい: だれ
Ouka and Seiha: Not at all!

{...some dialogues later. Basically Minami compliments Arata and Arata tries to hug her. However Minami reflexively punches him...}

[04:13] おう: みなみうんどうしんけいりつしんけいなの
Ouka: Is Minami's motor nerves also autonomic nerves?

[04:14] せい: あのくらいじゃないとオリンピックせんしゅにはなれないんですよ
Seiha: That is mandatory for an Olympic athlete.

[04:17] ばん: まあたしかに、かおはイケメンよね
Banri: However, he is quite handsome.

[04:20] せい: なかともなわなければくされです
Seiha: But if the inside doesn't match, it would only be a waste.

{...some dialogues later, they are talking about Kotono's birthday party soon...}

[04:56] せい: 7にんかけるのはりょこうらいですね
Seiha: Since the trip to Mie, the seven of us haven't gone out together again.

Second Scene, Kotono's Birthday Dinner

Banri and Seiha Season 1 Episode 1 Scene 2 Photo 1

Context: The Shiunji Family is about to hold a family dinner for Kotono's birthday. Some fuss is happening due to Minami losing Ouka's AirPods that were lent to her. The argument becomes heated and Arata tries to stop it. Seiha adds commentary.

[12:11] せい: きましょう。おとうさんもることですし
Seiha: Everyone, calm down. Dad is coming soon.

{...some dialogues later. Basically the Father reveals that they are not related by blood except Minami and Shion who are twins. They are having a small discussion after dinner, Minami is praising the family cook's cuisine...}

[15:28] ばん: ホントみなみのそのらっかんてきなところはおとうさん
Banri: In terms of optimism, Minami is just like Dad.

[15:32] せい: いえ。のつながりはなかったのででんはないかと
Seiha: No. We are not related by blood, so it can't be hereditary.

[15:36] あらた: だれわらえるんだよ
Arata: That's not funny.

[15:42] おう: パパがわるいわけじゃないのはわかるけどあんなこともっとタイミングとか
Ouka: I understand that we can't blame Dad, but couldn't he have chosen a better time?

[15:49] せい: いえ。タイミングてきにはベストかと。いつまでもさきおくりにできるようなはなしでもないですし。おかあさんとのやくそくというはなしまえてもことのの15さいたんじょうとうかと
Seiha: No. I think the timing is just right. This problem cannot be postponed indefinitely. Even if Dad made a promise to Mom, I think it's proper to announce it on Kotono's 15th birthday.

[16:06] おう: くつではかる。でもダメ?さびしいっておもっちゃ。今日きょうまでかくしてたなんて...パパにだまされてたのかって
Ouka: I understand. But am I not allowed to feel upset? We had been kept in the dark for so long... I feel as if Dad deceived me.

[16:22] みなみ: それはかんがえすぎじゃないかなー
Minami: You're overthinking it.

[16:24] おう: かってるけどさ!
Ouka: I know that.

[16:26] せい: ばんはどうおもいますか。けいさんじょうことのがうんいちいんになったときばんは4さいだったのでは
Seiha: Banri, what do you think? When Kotono came to the Shiunji family, you should have been four years old.

[16:34] おう: そうよ!なにかおく
Ouka: Right, do you remember anything?

[16:37] ばん: それがわたしちいさいころのおくほとんどなくて。うんー でも
Banri: I have almost no childhood memories. But...

[16:45] せい: なにかあるのですか
Seiha: Do you remember anything?

[16:47] ばん: あっいや...なんでもない
Banri: Ah, no. Nothing.

[16:49] おう: なにってよ。いまさらなにわれても おどろかないわよ
Ouka: What is it? Just tell us. At this point, no matter what you say, I won't be surprised.

Banri and Seiha Season 1 Episode 1 Scene 2 Photo 2

[16:54] せい: こんなメンタルのきたえられかたほんではありますが
Seiha: Although this kind of mental training is not what I wished for.

[17:04] ばん: ほんとうにささいなことだから。それにさ、いまさらたいしたことじゃないでしょう。15ねんかんいっしょだったんだからのつながりがないってわれてももうみんなをきょうだいじゃないなんておもえないって
Banri: It's really just some trivial matters. And at this point, it's not important anymore, right? We've lived together for 15 years. Even when told we're not related by blood, I can no longer not see you as my siblings.

[17:21] せい: まあ、それもそうですね
Seiha: That's true.

だい1だい1せいだいほんじょう。/ Seiha's Lines in Season 1 Episode 1 End.