Talk:General Discussion/@comment-24356282-20150610224033/@comment-139.228.166.29-20150611150206

In kana the "zu" sound comes from "tu" (or "tsu"), unlike "za zi ze zo" which come from "sa si se so". Therefore the romaji transliteration for the "zu" sound is either "dzu" or "du". It's also pronounced as "dzu" rather than "zu". Note that "za zi ze zo" are actually pronounced "ja ji je jo". Therefor, the only way to get a "z" sound is ironically from a kana that's transliterated as "du".