Also known as or published under: Can anyone help me with this artist's name?

Doujinshi:

1999: Sleep or Wake

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Important:
I am using the term 'Doujinka' in the titles of bio threads when I have posted scans of a japanese doujnshi, that was purchased, and the artist is not a member of this site. This thread is merely here to consolidate the information on the artist, and their works, when ever possible. If you have information, or images to add, please do so in a comment below!

What is a Doujinka?
Source: Fanlore
A doujinka (同人家) is someone who creates doujinshi. This can involve drawing, writing, editing, and putting together a doujinshi volume. A circle is a group of doujinka working together, though sometimes the "group" consists of only one person.

Circle:
Heart no kakera
viewtopic.php?f=6&t=339

the artist is most likely Karin but I'm not sure.

Thank you so much Karnella! Once again. I've been meaning, for ages, to go through and update with all the valuable info you're getting to me. It's really building. I was going to do it today, and then I realized I had some stuff from the contest to get to. It's always something.

I've also been meaning to just write you, but I never feel like I know what to say. Basically~ You've been in my thoughts!