Renya Karasuma

Renya Karasuma was a wealthy and influential multi-millionaire who is the most powerful person in Japan, with a lot of famous, powerful and political people contacts, and also rivals Jirokichi Suzuki, the senior adviser of the Suzuki Financial Group. He is said to have died elderly between forty and twenty years prior to the current timeline, during the Showa period, under mysterious circumstances. During his lifetime, he had collected over three hundred pieces of antique priceless art. When his mother had died, he inherited Sunset Manor from her and over time filled his vacation home with his silver crest which depicts a rolled-up crow.

He is the mysterious boss behind the Black Organization, who is respectfully called as Ano kata (あの方 lit. "That Person"?) by his subordinates, and the primary antagonist in the entire manga and anime franchise Detective Conan.