2065. What character can be added to both of these characters to give other characters? 西_ -> _未

西  SAE, SEI, nishi - west

未  MI - not yet

Add 女:西+女 女+未  

女  JO, NYO, NYOU, onna, me - female, woman

要  YOU, i(ru) - essential(s) need

妹  MAI, imouto - younger sister