I know the tag is already gone but here’s my two cents: I’m normally pretty strict when it comes to tags, but I think this series genuinely have a grey-area case. Here TS (genderswap) is a repeated gag, and the series goes way deeper into the premise than other series that does it as a one-off gag.
No spoilers but some of the TS chapters later even meaningfully progressed the plot/relationship, all while depicting the changed dynamics between the characters due to genderswap. It even showed up again in one the latest raw chapters (82).
Is it a series with TS as the premise, heck no! But it does scratch a lot of the itch for many fans of the tag.