Complex sentence: Years later, Tiger and his friends are dining at a nice restaurant on the same day that Ma Qwun receives the Luosha plaque which proves that he is the top triad boss in the Luosha Gate and second only to its leader, Shibumi.
Split into simpler sentences: Years later, Tiger and his friends are dining at a restaurant on the same day that Ma Qwun is receiving the Luosha plaque. The plaque is a symbol that shows that he is the top triad boss in the Luosha Gate, second only to its leader, Shibumi.