The Tokyo Riverside Rotary Club was formed in 1998 with the Tokyo Arakawa Rotary Club as the sponsor club (parent club).

Tokyo Arakawa Rotary Club
http://tokyo-arakawa-rc.com/

What is a Sponsor Club?

A sponsor club (or parent club) is a club that has taken responsibility for assisting in the formation of a new club and guiding its rapid growth as a member of RI after formation. is.