Jungle Taitei (1989) - episode 30 - 25 Apr, 1990

Vultures attack a group of monkeys which causes Laiya and Kimba (Leo) to come to their rescue. Kimba (Leo) protects Laiya some getting injured; however, Kimba (Leo) is badly scratched along the way. Laiya decides to go to the Crystal Forest to find a cure through a special herb, despite the other animals' hesitance. Kurosagi explains that it's a dangerous journey to get to the Crystal Forest and a guardian protects the legendary herb. (Source: Jungle Emperor Leo Wiki)