I thoroughly enjoy Iseleve for the escapism it so proficiently offers.
It encapsulates the quintessence of isekai anime, by delivering a dozen or so episodes of ethereal, otherworldly scenarios - a primary function of this genre.
It confounds me when viewers approach Isekai expecting narrative depth comparable to that of Kimi no Na wa.
Isekai anime like Iseleve, with their power fantasy harem themes, are a delight to watch precisely because they shun the confines of realism.
If the genre strays too close to reality, it risks diluting its inherent isekai charm.
If one doesn't appreciate this particular style of storytelling or plot, they might find more satisfaction in the works of renowned creators like Makoto Shinkai. You're barking up the wrong tree if you want a 10/10 story/plot and character development.