Seems impossible - COR is usually considered superior and has replaced the a4e version on all sharing sites. Since they also don't have any XDCC bots or distro the files in any other way, there seems to be no way to get them.
Hello, Thank you for uploading the previous request. I am collecting the works of サークル 4's Circle. This and This All links are dead. If you have any data, can I ask you to re-upload it?