Requesting 駆錬輝晶 クォルタ アメテュス #4 + , aka RJ144158
DLsite: http://www.dlsite.com/maniax/work/=/product_id/RJ144158.html
Artist: Shiraso しらそ
Circle: Kudarizaka Guardrail 下り坂ガードレール
There doesn't seem to be any download link ANYWHERE on the web, at least links that aren't click-bait links to virus...