Manga
 

From "Dokkiri! Angel" Volume 3 by MOTOYAMA Kazuki

Here's the very last of it.

Not enough starfish here.

Link
 

Yo, if it's not a problem can I have a link to where you found these please?

Some Contributions
 

I found these browsing random sites

Manga
 

From じゅるっと一発!!　デラックス版 by SAKAMOTO Shuuji
English title "Jurutto and one shot! Deluxe Edition"

Original?
 

Do you have a link to the original? And/or a translation?

The Author name: Kawara Keisuke

Example of his works
https://nhentai.net/g/54689/

Two random images I had lying around:

I think the girl in that comic is Nanako-san. I don't recognize that particular comic so maybe it hasn't been translated. Plenty of translated Nanako-san if you look in the usual hentai spots. Most involve some form of ENF or accidental nudity, tho I remember at least one that didn't have any involving a ghost story.

The ones I remember were narrated by a (male) classmate who always somehow ended up witnessing her misfortunes.

I always liked Nanako-san stories. Sometimes you get the impression that she's more embarrassed at her clumsiness that led to her naked predicament than because of the nudity itself. Also, the stories are very vanilla which is more to my taste.

Here's another sample: https://e-hentai.org/g/350906/99e099829f/