Although Lul Xun had never met Zhou Tai, the Patriarch Lul specifically painted a portrait of him, instructing Lul Xun and Lul Ji to memorize it, as Zhou Tai played a significant role in the Lul Family's escape from danger.
A drop of kindness should be repaid with a fountain of gratitude. The Lul Family was inherently gentle and deeply valued goodwill among others, and it was Zhou Tai who facilitated the Lul Family's escape.
Zhou Tai never disclosed this to anyone, but there were no fools in the Lul Family. A little thought about the time discrepancies made it clear someone had helped delay matters, allowing the Lul Family's plan to be seamless.
At that time, the Patriarch Lul confirmed that Zhou Tai and Jiangh Qin were within Sunx Ce's Army, both known for their loyalty, naturally prompting Patriarch Lul to have his sons and grandsons recognize them.