tóngmíngtóngxìng
ㄊㄨㄥˊ ㄇㄧㄥˊ ㄊㄨㄥˊ ㄒㄧㄥˋ
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 同名同姓 and it comes back until you know it.