Suicidal Hero

Underneath the ground we live upon is an underwolrd, where lives a race of people hid from the outside world because they were scared of bombs and the wolrd's falling apart.

Someone, who may find it unfortunate for themself, discovers these bared people in the underwolrd. Will they be able to rescue them and enter back into the real world? Or, will they get stuck with them and have to live inside the underwolrd forever?