That's Yin Xiaoqiu's Brother

Yin Xiaoqiu (waving his hand grandly!): Is this the protagonist, or my big brother? Knives, spears, swords, halberds, axes, hooks, forks, steamed buns, noodles, dumplings, fried dough twists: he’s a master of them all! He can fight, handle himself, and doesn’t even eat much. Everyone who’s crossed him has been sent off to Siberia to grow potatoes!

Yin Danshen: “Hm? Mm… yeah.”