Board Thread:Questions and Answers/@comment-9756677-20150815150336/@comment-24142271-20150817152612

If Shemihaza is one of there names then that page should be renamed and the other name be put as a nickname. This sort of thing happens all the time with manga's that become anime's. The anime almost never follows the manga 100% of the way. It's possible that they just felt like giving these three names without waiting for actual names to be given to them. The creator of the manga probably didn't realize these characters were already named in the anime and made a name them self.