Behold, Kelu's mighty hammer! She gets it in volume 2, along with a cute new outfit. I drew Mizha first on this page so she's a bit... elevated (I don't really plan things out well when I'm doodling), but this would be a good idea of their sizes in relation to one another. She comes up to about Kelu's shoulder normally. While we're at it, Junuka is maybe only an inch or two shorter than Kelu when he can actually stand up straight.