Tetra Metra Retra
| Main character | |
| Japanese Name | テトラ・メトラ・レトラ |
| Light Novel | Ore ga Heroine wo Tasukesugite Sekai ga Little Apocalypse!? |
| Gender | Female |
Description
Daughter of the cheiftain of the mole people. Came to the surface in search of help to stop a disaster from befalling the world.