From a rational perspective, he could understand Du Ming's vigilance. However, he was previously in the midst of experiencing delightful insights about bartending. Moreover, he had developed an affection for Du Ming's talents. Suddenly, he was questioned by his disciple, even left with no response. On an emotional level, Ji Dong found this difficult to accept. Furthermore, at times, he tended to be more emotional than rational. Otherwise, he wouldn't have faced hundreds, even thousands of enemies for the sake of the Forest Demon Clan, even against the Eastern Wood First Army Corps. That's why he left resolutely. He would still help with the issues at Bartender Guild, but he was no longer prepared to learn anything from Du Ming.
"Teacher, please don't go," Du Ming rushed forward, blocking Ji Dong's path.