Re:Zero, Konosuba, Overworld, and That Time I Got Reincarnated as a Slime are some of the best, alongside SAO which started the modern version of the genre.

That is exactly my thought reading the synopsis— this sounds exactly like the shitty isekai spin-off to SAO that never happened. Even the MC looks similar, just needs to be dual wielding to complete the look.

It is a reflection of an actual problem in Japanese society; with the low birthrate, it is fairly commonplace for adults to live with their parents until they are married, well into their late twenties or thirties.

Unfortunately, with so few ready career employment options available, many in this position remain in education or are underemployed for a comparatively long time, and around 3-5% are neither employed or in education.

We are seeing shades of the underemployment and “over”-education issues in the west, but in Japan, “living in your mother’s basement” is not a derogatory comment; it’s both expected and the norm.