The adventures of Leo, a young lion cub who becomes king of the jungle when his father, the previous king of the jungle is killed by a human hunter.

Heat Guy J is a 26 episode science fiction anime series created by Escaflowne director Kazuki Akane and Satelight. Heat Guy J was licensed and distributed in the U.S. in 2003 by Pioneer. It was re-released by Funimation Entertainment in the fall of 2009. The first 13 episodes of the show also was broadcast on the cable channel MTV2. A one volume manga was created based on the series, and was licensed and distributed by TOKYOPOP. The show was picked up for a UK DVD release by Manga Entertainment starting in March 2006. It was packaged in double DVD sets to make up for the long delayed release of the series.

Kintarō Yajima used to be the leader of a feared and respected biker gang, but out of respect for his late wife he chooses to straighten himself out and work as a salaryman so that he can support his son.