serious to find

http://www.mangago.zone/read-manga/eto_irokoi_zoushi/ ... I left this question up overnight, because I knew I recognised the manga, but couldn't place it, so was hoping someone else would remember. Then I saw the question reposted this morning, which luckily someone knew the answer to, and as I still had this tab open, I decided to post the link here for others who might be following. :) (Chapter 4.6 for the pictures above specifically)