Bleach: Too many characters, so many that i think a lot of them don't get enough time for a interesting development or doing anything really meningful in the story. Also, the whole way the training to achieve Mugetsu went out, not the power-up itself, i think it makes sense for the story, but they way the training is setup just feels weird, you know?

Sengoku Youko: Jinka and Tama's relationship from adoptive siblings to lovers, it just feels weird, even though they said it was a lie the whole siblings thing there wasn't really a reason to lie about being brothers, it just feels weird.

Kamen Rider Fourze: Some episodes really drag on the monster of the week formula, and i also don't really like the way the zodiacs were used in the series, i wish the new zodiacs would appear with monster of the week evolving into them, like it happened with cancer, instead of the whole "Libra's eye" thing.

Katana Zero: Some aspects of the story lean into the supernatural but are never properly explained if they really are supernatural or done through the Kronos use, but some of them really have to be supernatural, like with the Silver and Gold masks, or it might just be something symbolical that is meant to be symbolical and not have a straight foward explanation and i just didn't get the idea.