Riyoko Takenaga
- Birth date
- 4001
- Death date
- unknown
- Nationality
- Shinri
- Occupation
- Politician and spy
- Alignment
- Neutral evil
- Religion
- Spirit faith
- Alleigance
- Oni syndicate (4022-40)
- Offices held
- Hand of Takenaga (), Takenaga rebels leader (4022-4027), Takenaga clan leader (4027-4028)