This is a two-Blu-ray set featuring all four episodes. - Title: THE i - what is Number-i - - Number of Discs: 2 - Episodes: 1-4 Thank you for viewing. This is a new, unused item. Additional Information: I sincerely apologize that the purchase was canceled due to identity verification by the administration, which was related to my first-time use of Mercari. I have now completed identity verification and am listing the item again. Thank you for your understanding.