Sasurai Emanon was not as impactful as Omoide Emanon in my opinion, but I also think that was sort of the intention.

Mainly focusing on different timelines Emanon delves in and out of, Sasurai Emanon depicts the type of events Emanon experiences over time, making it quite like a slice-of-life manga. We the readers get to see how it is to live as Emanon, as well as what sort of paths each different Emanon takes, showing that though they all share the same memories, each one is unique in their own way.

The ending for volume 4 was technically the scene where Ema is dying, and Eiko stands outside, simply to walk away at the end without meeting her parents, as if to say “One chapter of my life has ended, and now I move on with my journey.” It says to be continued in the next page however, and we get to see Emanon walking through the streets and some dude that looks like the Snake school official, possibly the Superman boy from a couple chapters ago, calls out to Emanon. We see his face, who if my theory is correct, has turned into the man he once despised, and the story ends. …this is very confusing for me, it definitely said “to be continued” and showed those 4 pages that seemed to be a preview for a story addition to Emanon, yet Sasurai Emanon is declared completed on most anime/manga websites, and there has been no news of another volume since Volume 4. Hmm…

Even though it says it's complete, I really don't get that impression after finishing the third volume. What's there is certainly interesting, but I feel the pacing was very strange and there isn't much of a conclusion.

Omoide Emanon is just better imo and can be read separately.
This one has some pacing issues and the transition from a timeline to another is not smooth and can get confusing. This has probably have to do with the fact that some of the arcs end in the following books.
Furthermore, Tsuruta Kenji (artist) states on the epilogue that the series got cancelled but I searched on-line and maybe carries on June 2023. So the only way to find what is going on is by reading Kajio Shinji novel which is in Japanese...

In chapter 7 there is a timeskip of 30 years where she finds her brother again and shows some suspicious men in black trying to track her in the forest. This part of the story is put on hold and no idea what is going on unless you read novels since...
Then there is a timeskip in the year 1973 which is shown in chapter 9.
Chapter 8 shows some events after the arc post chapter 9 such as her getting married and is practically chapter 16 all over. No idea what happened there with the chapters I tried checking many websites and is either a missing chapter 8 or a repeating chapter.
Scanlations are a mess so if you get original translated is gonna be much better. Still, the pacing is inconsistent and the transition poor that took me awhile to get what is going on.

It's early 2018 and I finally got to read this story to the end, thanks to Japanzie scanlators. The story, which was so mysterious several years ago when I started reading the Emanon tales, is now coherent and makes sense.

This is a highly unusual manga. The actual events narrated are pretty routine and undramatic, but the concept is wonderful, an it carries the series. That, and the terrifically pretty and realistic art. Together these factors allow this manga to create the "sense of wonder" that is the essence of traditional science fiction (which is always built around a believable and impactful hypothesis). In addition, there's an element of sadness in the situation of Emanon. However amazing her gift is, it looks to me like it condemns her to endless lonliness. The awareness of that inescapable lonliness is the unstated subtext of this manga, which gives it its emotional core.

It's quite pretty, but not so great on the storytelling front. There's a mystery about this Emanon character, but nothing is ever resolved up to what's released. I don't know what to make of it...