V6P5, 30%:

Prior to today, Leah controlled the portal town in Hilith. Lyla, the one in Oral. Magna Malum controlled two of six on the continent.
That number just grew to six with Leah's acquisition of Kiefer.
That left three more to lock down..

- the maths suggests this should be three

93%: “half an houror so?”

P8, 8%: “That cluster of shrubs was the only [thing] that sprouted more than a few feet off the ground for miles”

V1P5 88%

Takane. You picked a young one to get back at me, and you made sure he was uneducated to protect your pride, right?

Hoshi was making it sound like Inami hadn't been able to bear the fact that Aoi was less educated than him.

The second paragraph doesn't make sense after the first. Why would Inami be unable to bear that Aoi was less educated than him when, according to Hoshi, Inami specifically selected Aoi because he was uneducated to protect his pride?

I think it's is actually about Inami being unable to bear that he was less educated than Hoshi

V7P5, 64%: “My wounds were grave, and there was nothing I could do to stop my vision from going [from] just blurry to soon blacking out entirely” - not entirely sure the “soon” works where it is either with the sentence constructed as it is currently.

P6, 85%: “Kano blustered, frantically turning her pigtailed [head] from left to right and back again”

v11p4 57%
smiths!"wd

Then I'll personally feed you nutricious, gentle meals

”Gentle meals” is not a common expression in English.
Does Vute mean something like "nutricious and delicious" or more like "nutricious and easily to digest"?

V10p7 82%:

wend through where the monsters lie thickest" Bishop

Missing comma before quote.

V6 P4, 48%
"Like Airi said, there must have been a spell over this place that made the interior seem much more spacious than it appeared."
Seem and appear are synonyms, so with the way the sentence is structured one should be changed. Some options might be:
"There must have been a spell over this place that made the interior seem much more spacious than it (first) appeared."
Or "there must have been a spell over this place that made the interior seem much more spacious than [its appearance from outside would suggest could be possible]

V6 P5, 8%
"SuddenlyI heard someone speak to me."
Missing space

V11, P10, around 44%:

He would’ve set up some kind of match with me, and then retired retire to take responsibility for his loss, and that would then allow him to pass the throne onto the next generation—to Riviseal.

Extra letter.

V2P6, 35%: "Akira was outraged to see two of them used for frivolously" - so

v6p8:

8% - […] helping someone who let Miru get hurt […] -> Wrong name. Hugo’s trying to protect Misha: who let Misha get hurt

V14 P13, 73%
“I believe you acted disrespectful toward His Highness, Lunalinde-sama,” said Jude.
“Disrespectful? I simply wanted to provide some basic advice as the fiancée of—”
Disrespectful -> disrespectfully

88%
"...but Lunalinde-sama is pretty much guaranteed to become the next Duke Guardwell."
It's possible that this world has gender-neutral terms for peerage, otherwise Duke -> Duchess

v2p5:

59% - “Martina, Nadia, glad I found you two. Sounds like you were just looking for me.”. -> (Prior lines: “As soon as Nadia gets here, [….].” and […], the door to the hall opened and Nadia stepped in.) I think that Nadia is the one speaking the line, and I presume that she hasn’t cloned herself. Since Martina’s working with Sylvan on the carriage design, I presume that the “Nadia” is supposed to be: “Martina, Sylvan, glad I found you two.”

v5P2p8:

69% - HIs Highness […] -> Extra capitalization: His

V1P9
~40%

• Epilogue: The Channel Gets Reincarnated!

Do not know how it is in the Japanese, but maybe missing as chapter title? (At the moment it is only bold in text and prologue is a chapter title)

V8 P9 (6% - 16th line down from top of page)

...but at any rate, she was carried herself pretty seriously for once.

Remove superfluous "was" from sentence.
e.g.:

...,she carried herself pretty seriously for once.

Volume 2 Part 7 79%

"We're not children!" Keynerich and I shouted in unison. We were both sixteen years old! And under one hundred fifty centimeters tall!

Is under correct? I know they are short but that statement is contrary to the point they are trying to make.

v13p9 ~100%

Does an angel's rank change based on the number of stones offered.

Should likely be offered? with a question mark.

V6P2 ~74%

Lofus's forceful words silence Alba at once.

Should likely be silenced.