Wan Yulin had already investigated thoroughly. The man captured from Qian Jinhai's mansion turned out to be Qin Tie, the successor of Luban. Qian Jinhai was his junior brother. He was an ignorant and incompetent hooligan who only knew how to dawdle. He couldn't make such a sophisticated weapon like a mortar.
The mortar that Qian Jinhai had contributed to the imperial court must have been Qin Tie's. That was why Wan Yulin had been more patient with Qin Tie and allowed him to survive.
Qin Tie was brought to the palace by the eunuch. After he entered, he stood in the main hall and glared at the Emperor, determined not to kneel.
A eunuch went over to kick him and asked him to kneel to the Emperor. Wan Yulin raised his hand to stop him.
"Don't be rude to Mister."