Gin'iro no Olynssis, also known as Olynssis the Silver, is a Japanese anime television series set in a post-apocalyptic world. It follows the story of humanity's struggle for survival against mysterious robotic lifeforms called Gardeners. The narrative delves into themes of love, loss, and the fight for a better future, featuring a group of young protagonists who pilot giant mechas. The series combines action, drama, and romance to create an engaging experience.