He is working to dig out coal.

He works digging out coal.

Enjoying the outdoors evening coolness, yuusuzumi, is the best on summer nights.

This room is cleaned thoroughly, down to every corner.

He decided to get a tattoo.

He tattooed a dragon on his arm.

The fire-rat's twist has a characteristic of being strong against fire.

Kasumi is my best friend.

The mole rat lives underground.

The naked mole rat is a very unique creature.