Natsume's Book of Friends Takashi Natsume & Nyanko Sensei Nendoroid #1245. 
"One who protects me, show your name." 
Natsume comes with 3 face plates (gentle, smiling, and returning the name of a yokai). 
He also comes with Nyanko Sensei, Book of Friends opened, Book of Friends closed, and a school bag + additional hands for various poses.
Based on the anime series Natsume Yujin-cho.
Approximately 3.9" tall.  
Brand: Good Smile Company