pǐfūpǐfù
ㄆㄧˇ ㄈㄨ ㄆㄧˇ ㄈㄨˋ
Simplified 匹夫匹妇
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 匹夫匹婦 and it comes back until you know it.