Haruchan To Issho Rj01044667 Instant

I need to verify if there's existing information on the web about haruchan to issho and the RJ number. A quick search shows that "haruchan to issho" isn't a recognized title in English, so maybe it's niche. The RJ number is likely specific to a doujinshi or another medium. Also, considering the user's query is in English but the code is Japanese, there could be a mix of cultures here.