Board Thread:General Discussion/@comment-24889894-20140913191035/@comment-3076833-20140927155148

Not to mention it does indeed have Spanish origins : http://www.behindthename.com/submit/name/maika (And i've yet to see one of these sites say it has a Japanese varient)

I think Maika is one of those names that was picked mostly for it's easy pronounciation in other languages, not to mention the Japanese style (to match the design) can easily catch on with fans. The only unfortunancy about it is that the name is automatically assumed to be Japanese.