jiāoqíngfěiqiǎn
ㄐㄧㄠ ㄑㄧㄥˊ ㄈㄟˇ ㄑㄧㄢˇ
Simplified 交情匪浅
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 交情匪淺 and it comes back until you know it.