Hu Wenjun did not expect that when the Japanese welcomed them at the airport, they would face such questioning.
As someone within the system, Hu Wenjun fully understood the consequences if he failed to answer properly in such a situation.
If he couldn't reply to the Japanese question right after the delegation had landed and before heading to the hotel, losing the etiquette of the Celestial Empire and losing face, the media, especially Japanese media, would definitely report extensively, perhaps even deliberately stirring things up, which would result in great embarrassment for them.
After all, the purpose of the Huaxia delegation's visit to Japan was to compare medical skills with masters of Japanese traditional medicine.
Of course, this purpose was privately acknowledged; officially, it was deemed as an exchange visit.
If he was perceived as inferior at first meeting, it would be his responsibility.
To lose dignity and responsibility, that would be troublesome for him.