Linger is a character in The Rainbow Cat Fighting the Sword in the World, a sage of the rat family. The forest has seen the restoration of peace, but in fact it has to face a bigger crisis. A meteorite landed near Lan Tu Palace, so Lan Tu was seriously irradiated and his life was dying. Only the expensive olivine of Sirius Gate can handle it. At the same time, the high priest and the queen mouse made an insidious plan: capture all the legendary five spars and absorb the energy of meteorites to rule the forest. They sent the holy light to carry out this task.