fǔshǒuchēngchén
ㄈㄨˇ ㄕㄡˇ ㄔㄥ ㄔㄣˊ
Simplified 俯首称臣
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 俯首稱臣 and it comes back until you know it.