>>3601057>>3601130>>3601143It's explained on her KanColle Wiki page, but I'll just copy paste it here to save you time.
Fans have given her the nickname "Zekamashi", her name "spelled" backwards as it would be on an old Japanese life preserver. This is because traditionally, Japanese was written in vertical columns from right to left. If you tried to write on something thin like a life preserver, there would only be space for one character per line, so you would end up writing backwards by modern, left-to-right standards.
