They didn't offer up a blurb on the series, so here's my shorty on the new season from the Winter Season Preview:
Zoku Natsume Yuujinchou follows the continued tales of a beleaguered boy who inherits his grandmother's book of demons that she captured against their will. Now he has to make up for her cruelty.
Good times! Hey Crunchyroll, can you try and snag the license for Hetalia Axis Powers, too?