"99-shiki" Nihon-go no Roomaji Hyouki 99-shiki Roomaji wo Shoukai shi-masu. Boin-ji: a, e, i, o, u Shiin-ji: b, d, f, g, h, k, m, n, p, r, s, t, ts, v, z Han-Boin-ji: j, w, y Kumiawase: (Shiin-ji + )(Han-Boin-ji + )Boin-ji [+A] [+E] [+I] […