This is near to my grandma's recipe, it's no secret by the way - it is to add the fish sauce (魚露)
It is one of Hakka's favorite seasoning - it can be used for soup, for cooking dishes and even for drinking(joking)
Result - I started to use hand to take the rice (because we forgot to bring the spoon), then the rest of relatives used hand and finished the lo mai kai in less than 15 minutes.
I hope my grandma "was satisfied" with my mum's cooking.
Rest in peace, grandma, I miss you.