Characters Introduction

this is a crossover about Slendytubbies Codigo-Z characters taking roles,

the story tells about the two races ruled over earth: humans and monsters. one day, war broke out between the two races.
After a long battle, the humans were victorious.
They sealed the monsters
in underground with a magic spell.

many years after the war, in 201X, a teletubby who had managed to get away from being sealed. the teletubby climbs
Mount Ebott, the legends said that those who climbs the Mountain never returns.
The one tubby climbs to the mountain and falls in the underground,