Just a little observation
Soo.. i heard from ln readers that the anime actually made some changes from the original.. I was reading comments about it, and I saw a few people say that some of the episodes didn't quite make any sense/it didn't really have any relation to the plot etc.
For example, the liebe episode or the episode where they formed a band. Yes, I must admit, I was also confused at first. But after some time and thinking about it more (since I'm quite obsessed with this anime now)
I've realized that those kinds of episodes weren't entirely nonsense or didn't have any relation to the plot. If you were to think about it more; They actually do make sense. I've thought of it as this: Those are the things that Kihachi invented/created from the catalogue and stuff. And that means, those episodes show off what the future might look like from his point of view, it also shows the new things that could be introduced etc.
Fyi: this is actually my first time making a post like this on reddit so I'm sorry if my explanation kind of sucks or it sounds a little incomplete. I'm not that very good at words, but I do hope that you can understand what I'm trying to say though :) that's it!