I feel you’re just leaving me hanging with just that statement. XD
XD Sorry. It’s more that I don’t have many details, and it seems impossible to find the dojinshi to read!
Basically she put out two Greenwood dojinshi after the series wrapped, and she drew some Cool/Herb, Mitsuru/Shinobu set during their Greenwood days, and college-age Mitsuru/Shinobu where they moved in together (like they said they would in one of the last manga chapters). I wish I could find scans, but I think she only printed a reeeeeally small number of them.