Why did Renya Karasuma appear in Kyoto?

Because Karasuma Renya has to go to Kyoto to complete a deal.

In the anime Detective Conan, Renya Karasuma is a rich man. His wealth was obtained by trading with international criminal organizations. He came to Kyoto just to complete a deal with a criminal organization. transaction.

In the anime Detective Conan, Renya Karasuma is also called that gentleman, that adult, the winery owner, and the boss.