Free Life Fantasy Online turned out to be quite similar to Bofuri. Main differences are a significant cooking subfocus and how the protagonist here is an experienced gamer who deliberately seeks out an eccentric character build. There’s also a pretty big focus on explaining/expositing upon the game design which I honestly could do without.
If the Afterword is any indication though, I doubt the series will get any less technical as it progresses. Seems the author actually wanted to be a game dev and decided that writing a novel was the best way to realize that dream.
The Shikkaku kara Hajimeru Nariagari Madoushidou! books on the other hand don’t remind me of any one particular series, but rather several; Rakudai Kishi no Cavalry, Ansatsu Kizoku, and Knight’s & Magic. Almost no romance elements here though, at least not yet (the stage is set for a potential love triangle-slash-harem down the line however).
What’s most interesting about this series is the magic system. Basically, it takes a standard ‘language of power’ setup and tweaks it by having spell effectiveness be determined by sentence structure, personal imagination, and environmental context. For example: A spell that uses ‘darkness’ or ‘night’ in its incantation will be less effective when cast in daylight (regardless of its intended effects). It’s a neat idea that provides a credible reason for why the protagonist can be so effective in combat situations despite his lackluster magic reserves.