Kawarada was born in Tokyo as Kakichi Okumura, the son of a samurai from Mimasaka Province.

He was adopted by Kawarada Moriharu, originally from Aizu Domain and later an official in the Meiji government and expert in fisheries science who was later an aide to the Konoe family.

It was around this time that he became affiliated with the Rikken Seiyūkai political party, although he was also very close to Fumimaro Konoe due to his family ties.

During World War II, from 1943-1945, Kawarada served as Governor of Osaka Prefecture.

After the surrender of Japan, he was (along with all other members of the wartime government), purged by orders of the American occupation authorities.