disregarding the fact that this is done on the scanmarked Chinese TL, some of the dialogue is pretty embellished or rewritey from the first 20 or so pgs I read

002
OG: 朝はカフェオレだよね
TL: "You drink instant coffee in the mornings, right?"
ED: cafe au lait, not instant coffee

OG: 今日は粉のやつじゃなくて一から入れてあげる
TL: "I'll brew you one from scratch instead."
ED: missing detail, here is where he says he won't use powdered stuff

003
OG: あ…卵も一個しかないや
TL: "Ah...not a single egg."
ED: he's saying there's only one egg

006
OG: それに掃除は朝僕がやった
TL: "You know, I'll do the house chores so you don't have to do anything, Sis"
ED: he's saying he already did some cleaning in the morning anyway

008
OG: 何かあったらすぐに言ってね
TL: "So if anything happens please tell me right away, okay?"
ED: he's telling her to let him know if she needs anything

OG: 約束だよ…
TL: "I've made an appointment..."
ED: they're making a promise

011
OG: お小遣いあげてるよね？
TL: "You need pocket money, right? I'll give it to you"
ED: he's rhetorically asking about the money he already gives her

OG: これ以上澄透に迷惑かけたくないの
TL: "I'll listen to you more!"
ED: she's saying she doesn't want to be a bother for Sumiyuki

OG: 僕は迷惑なんて思ってない…
TL: "You're not listening"
ED: he's saying he doesn't think of her as a bother

013
OG: 何？それ… / 聞いてないんだけど…
TL: "For a part-time job?" / "I told you I would not allow it. Also, didn't I teach you not to lie?"
ED: made up dialogue, all he says is he didn't hear anything about it

014
OG: ガチャ…
TL: "GAH!"
ED: this is sfx for the door

018
OG: …僕はね / 姉さんのことが好きだよ
TL: "You're my reason for living." / "Sis you see..."
ED: he just confesses here

OG: 恋愛対象としての好き
TL: "...I love you."
ED: he's making it clear that he loves her as a woman (which he reiterates in the last bubble)

021
OG: 姉さんの肌は綺麗だね…
TL: "I've always wanted to stroke your skin like this, but I held back."
ED: he just says she has beautiful skin

OG: この体もずっと / 僕のもの…
TL: "There's no need for that anymore, right?" / "Or rather, there never was. This body belongs to me."
ED: he just says her body will be his forever

Base +22, Astargo +7, Morisakitaku +6, fffffffffffffffffku +6, cutegyaru +21, as102 +13, Bloody_Rain +7, anotherblackluver +7, Yoi6 +4, Kuroichigo* +7