Shueisha was in the Chiyoda district, and Kodansha was in the Bunkyo district. The two districts were connected, with Bunkyo in the north and Chiyoda in the south. The distance between the two was close as well.
When Meng Fan left, Hiroji Wada was already awaiting him outside. An hour had already passed as Hiroji Wada arrived at his destination before telling his chauffeur to backtrack to here.
It was a hassle to eat together, so Hiroji Wada was pretty content when Meng Fan rejected his offer. However, the chauffeur wanted Meng Fan to stay. They dropped Meng Fan off at the entrance of Kodansha. When he heard Meng Fan say he didn't need to be picked up afterwards, he was overjoyed but also very curious.
After all, he was a chauffeur from Toei Animation, a person in the anime industry. He was very informed on what was happening in the anime industry compared to most practitioners.