The Training Compartment

'Fwoosh'

"Is this it?"

A complaining voice could be heard outside the door of the building from where Rin had entered it just a moment ago. 

Her reaction to whatever she had seen inside the building had come so fast that the space in the door had to close yet thus her voice was heard outside.

Inside the building.

Rin was looking around with a disappointed look. 

The inside of the building had a simple design. There was only a bed there along with a lavatory.

Rin looked up and stared at the fourteen feet tall roof of the building. The height of the building was three times her own height and it felt like towering to her.

The only thing this difference made her feel was the urge to grow faster so she could at least close this difference by a foot or two in the coming years.

Thud.