What is the fourth season of Kelly in the concave-convex world?

Kelly's shoes and clothes changed in the fourth season.

Kelly changed her clothes and changed her shoes into sneakers. Because Kelly used to sit on the blade of the moon and the blade of the moon almost all the time, there was nothing wrong with her slippers, but this time she changed her sneakers. Maybe Kelly's moon blade may be damaged, or she can't ride the moon blade, so she changed her clothes.

The clothes have changed, and it seems that the clothes have been replaced with long sleeves. I think this may have something to do with the change of the scene in the fourth season.

Kelly:

Kelly, a character in the comic book Bump World and its derivative works.

Just because it's fun, I came to participate in the bump contest. Childhood experience made her understand the importance of strength and have a natural understanding of fighting. She is keen on creating thrilling "games", and the person who dominates the games is herself. The little-known newcomer killer "Xingyue Witch" pretends to be harmless and plays with newcomers in the contest. Is a lovely and evil girl.