Japanese
女名 ending in
子 (zǐ, Japanese 'ko') almost always denotes a female name —
子 is the classic suffix for women born in mid-20th-century Japan (e.g.
雅子, Masako).
弥 ('mí', 'fill / extend') and
惠 ('huì', 'kindness') match the Japanese readings 'mi' and 'e', giving Mi-e-ko / Miyako.