This is a posable action figure from the Nendoroid series.
From the Good Smile Company website:
From the popular browser game "Touken Ranbu -ONLINE-" comes a Nendoroid of Kogitsunemaru! He comes with three expressions including a charming standard expression, an aggressive combat expression and a refreshing smile based on his lines from the game.
As with the previous characters from the series, his sword is included and can be displayed both sheathed and drawn plus the game's fox navigator "Konnosuke" is also included to display beside him or other characters! Be sure to add him to your collection!