Loneliness is Death
You can't survive just by yourself
But the baby yukkuri still have their sister. They stay alive in this trench world of theirs by acknowledging each other's existence.
The reason darkness brings fear is because they can't see.
But when closing their eyes, they can forget about the night. They lean on each other and stop feeling the coldness on their skin.
Both rubbed their cheeks and dreamed of the warmth of their mother