reminder that page 14's "Hero Oji-san" is a parody of this series:
https://mangadex.org/title/31488/isekai-ojisan you can tell by the cover page having the same styling as the first one (female fantasy character on the right and a bunch of panels as a backdrop with a solid colour at the top). i liked that
EDIT: upon checking, it even has the same pose and volume number, but it was the panels as backdrop that made me immediately notice.
here's the cover in question: