Completed raws https://newrawmanga.biz/read/%E6%89%8B%E4%B8%AD%E3%81%AB%E8%90%BD%E3%81%A8%E3%81%97%E3%81%A6%E3%81%84%E3%81%84%E3%81%A7%E3%81%99%E3%81%8B-raw/
wait, what do you mean completed? The website you linked has only 16 chapters
Completed raws
https://newrawmanga.biz/read/%E6%89%8B%E4%B8%AD%E3%81%AB%E8%90%BD%E3%81%A8%E3%81%97%E3%81%A6%E3%81%84%E3%81%84%E3%81%A7%E3%81%99%E3%81%8B-raw/