The planet that the Kamikaze Fireballs originate from is located in Universe 2.
Overview[]
As noted by Heles, the inhabitants of this planet had a unique view on beauty. They believed that strength and beauty were relative to each other, thus Ribrianne was considered the most beautiful on the planet. Additionally, they believed simplistic looks were attractive, causing the Kamikaze Fireballs to view Krillin as handsome and Android 18 as ugly.