I'm not too into slice of life to begin with but this was tedious even by slice of life standards. I can't say much about it because I dropped it so long ago that I had to re-read the first couple chapters to remember why. It left so little of an impression that I couldn't be bothered to remember it at all outside of thinking "it was boring." It makes me sad when I drop a gender bender, particularly when it's not even close to the worst writing I've seen. However, this story just felt completely empty. I felt an utter lack of interest when I tried to read it. The protagonist not only wasn't bothered by the sudden gender change, he seemed to be pleased with it. The only stir it created at all was a series of brief and mild reactions among side characters. It was to the point where it makes you question why the protagonist was ever even male to begin with, since it serves no real purpose. The characters themselves are mostly boring cliches. Since it's slice of life, there's no real story, no struggle, no romance, no objective, no real point to anything at all and without strong characters to prop up this void, there's really no reason to even bother reading this.
There's multiple reasons to find a gender bender interesting. Most of those reasons revolve around the issue of sudden loss of identity. Whether it's played off as a joke, a plot device or actually taken seriously is pretty much what most of them boil down to. While having it played off as a joke can be really hilarious, it usually just ends up as tasteless and/or boring repetitive jokes. That's by far the most common route chosen by authors. Regardless of whether it's taken seriously or treated as a plot device, it takes rather talented writing to make it good and I can't even remember the last time I saw writing that talented. Pretty much 100% of the time it's treated as a plot device, it's either to force an undesirable/unrealistic romance or simply used as an excuse to use a female protagonist and excuse away lazy writing and characterization. Taking it seriously is by far the riskiest path. It's far too easy to either fail to properly take it seriously or to go to the other extreme and treat it like a fictionalized trans autobiography. I don't read fiction to get everyday real world drama dumped on me and no one enjoys it when an author tries to take a subject seriously only to unintentionally turn it into a tastelessly bad joke. This manga in particular feels like it uses a gender swap simply to excuse away poor characterization of a female protagonist and create needless and boring angst between said protagonist and side characters who are far more bothered by the transformation than the protagonist is.
On the topic of sudden identity loss in general, you don't have to gender swap someone to create an identity crisis. Have a grenade take someone's face off but not kill them and it can be just as, if not more so, brutal as suddenly having your entire body magically changed to an unrecognizable state.