Underground Facility [5]

A burst of white light flared up from Aina's palm, illuminating her surroundings and casting shadows on the walls.

The soft sound of footsteps echoed across the walls of the tunnels. Aina's steps were measured, filled with confidence and purpose.

It had been thirty minutes since she stepped into this tunnel, yet it seemed as if she had walked for ages because the tunnel was unending and seemed to stretch forever.

Moreover, there were no other branching paths. It was simply straight.

"I wonder if the other tunnels are also like this," Aina thought to herself, boredom slowly settling in.

She froze in her steps, then pondered with a thoughtful expression. Just how many more steps will I need to take?

Just as she stopped walking, though, she noticed a branching tunnel carved into the right side of the wall. The darkness in that one was several times thicker and almost suffocating.