Ring Ni Kakero - Season 2 Episode 8 : Natural Born Madness
Kiku and Ryuji take over their late father’s ambition of becoming a boxing champion. As his sister trains him, Ryuji progresses physically and mentally and he finally meets his destined rival, Jun.
First Air Date : Oct 06, 2004
Last Air Date : May 15, 2011
Runtime : 25 min.
Genre : Animation, Action & Adventure
Stars : Masakazu Morita, Rie Tanaka, Mami Kingetsu, Takeshi Kusao, Hideo Ishikawa, Hiroshi Kamiya, Ryotaro Okiayu, Fumiko Inoue
Quality : 
- Eps. 1 : Start! Golden Japan Jr.2006-04-06
- Eps. 2 : Under the Oath of the Flag2006-04-13
- Eps. 4 : Having Spirit in the Fist2006-04-27
- Eps. 5 : Pierce Through the Storm!2006-05-04
- Eps. 6 : Temptation! The Demon's Eyes2006-05-11
- Eps. 8 : Natural Born Madness2006-05-25
- Eps. 9 : Fierce Tiger, Go Wild2006-06-01
- Eps. 10 : Superstar2006-06-08
- Eps. 11 : Black Flash2006-06-15
