Put It All in the Ring

, or Ring ni Kakero, is a manga created by Masami Kurumada. A total of 25 volumes were published in Weekly Shōnen Jump between 1977 and 1981. And anime adaptation by Toei Animation aired from October 6, 2004 to December 15, 2004 for 12 episodes. A followup second season and 2 mini-series were made: (April 6, 2006 to June 12, 2006; 12 episodes),  (April 2, 2010 to June 17, 2010; 6 episodes), and  (April 10, 2011 to June 12, 2011; 6 episodes).

Plot
The story centers around the life of a young boxer named Ryuuji Takane and his sister Kiku, who is also his coach. Their father had been a famous boxer but is now deceased. Ryuuji and his sister both inherited their father's talent for boxing: Ryuuji inherited his strength and techniques, while Kiku picked up his talent for analysis and strategy. Ryuuji and Kiku leave home to train and become famous in order to help their lonely mother. On the way to stardom, they have to defeat the strongest challengers all over the world.