Kuromi's pretty journey is more so a commercial, it exists specifically for the "Kuromi-fy the world" campaign recently created in order to make the already pretty popular mascot, Kuromi, even more popular in regions where Sanrio merchandise may be more on the lower end. Despite having an actual story, most of the webseries is pure shenaningans. Kuromi goes around in her flying vehicle and does some random stuff that is sometimes related to whatever the land is most known for. Going to america? She's in a broadway show. Going to china? She does kung fu, etc. One thing that really surprised me was the fact that Bakushows up, I was hoping to see more characters from the original Onegai My Melody anime (Which is where Kuromi first debuted) but sadly that is not the case. Oh well.

There is not much more I can say about the series tbh. Like it's an ok quick binge that you can watch for free on youtube, it doesn't try to be anything more than a way to appeal to fans of Kuromi and possibly try to rake in new fans who may not have heard of her.

If you want something quick and cute to watch go ahead and check it out.