Adventure of Gamba(1975)

Adventure of Gamba is an animated series following a brave mouse who discovers that an island called Yumemishima is under siege by Noroi, a ruthless white weasel. Determined to stop the tyrant, Gamba assembles a band of seven fellow mice and sets out on a perilous journey across the sea. What begins as a rescue mission becomes an epic adventure as the small band faces Noroi's growing power and the dangers lurking on the mysterious island. Adapted from Atsuo Saitō's 1972 novel, the series blends action and heart as unlikely heroes prove that courage and friendship can overcome even the darkest threats.