https://www.pixiv.net/en/artworks/108179713
https://www.melonbooks.co.jp/detail/detail.php?product_id=1891283

The eighth manga compilation by Yakumi Sarai, it contains the following titles:
006-039 - スワコVSスペーススワコ | Suwako vs. Space Suwako (https://www.pixiv.net/en/artworks/74517490 and an English translation available at https://e-hentai.org/g/1498505/e996fc6c7e/)
040-092 - 幽香繚乱 | Yuuka Ryouran (https://www.pixiv.net/en/artworks/76148487)
093-154 - ゴゥ！ゴゥ！アラウンド | Go! Go! Around (https://www.pixiv.net/en/artworks/77091172)
155-212 - からすとうさぎ | Karasu to Usagi (https://www.pixiv.net/en/artworks/80221677)
213-277 - マジマジ | Maji Maji (https://www.pixiv.net/en/artworks/81179897)
278-341 - PRIMAL FLOWER (Unique to this compilation, not released separately)

UPDATE: Got a brand new scanner, working on updating all my scans.

Some minor notes on the scan:
- On page 113, a bit of text in the last panel appears cut off. That is not a bad crop on my part, the page is physically cropped this way, I'm generally within a millimeter of the border.
- Pages 258-259 and 332-333 are dual-page spreads. But with the way the book was printed, the gap between them was far too great for me to consider repainting it, so I left them separate.
- Quite often, the content itself is not quite aligned with the page margin. I almost always align to the content itself, but in some cases I'd hit the margin long before the crop, so those pages were left kinda misaligned. There's maybe 10-15 of them. Not much I can do about that.

Oh, and this time I decided to convert everything to JPEG (90% quality setting) instead of sticking with PNG, since the imperfectness of scans really hurts the PNG file size (JPEG cut the size by half without any perceptible quality loss).

I would kill to see this whole thing translated and thrown up on mangadex

Base +6

@The_Riddler69
Translations are already available, actually.

Suwako vs. Space Suwako - https://e-hentai.org/g/1498505/e996fc6c7e/
Yuuka Ryouran - https://danbooru.donmai.us/pools/15399
Go! Go! Around - https://danbooru.donmai.us/pools/20391
Karasu to Usagi - https://danbooru.donmai.us/pools/15845
Maji Maji - https://danbooru.donmai.us/pools/20359
Primal Flower - https://danbooru.donmai.us/pools/21021

Only, as you can see, most of them are just notes on Danbooru, so before they get actually posted properly someone needs to typeset them. But hey, decent image editing skills are a lot easier to come by around here than fluent Japanese, you can even be the one to do it.

Base +7