Who is the middle-aged man talking to spades K? Xixi's father.

Wu Tun: the father of spades K, a drug dealer family. Wu Tun (A), a drug Lord, wanted to cultivate Jiang Tingpei into his bosom friend when he was in public security (Q of Hearts), but out of his inner hatred of drugs and sense of justice, Jiang Ting has been secretly planning to crack down on the criminal group of him and his son Wen Shao (K of Spades).