Someday or One Day ends with 13 episodes.
This is not an alternative ending, but a small "thank you" present to all devoted fans across the world.
Thank you for joining the story and riding along with us in this journey.
The one last piece of puzzle that will complete "Someday or One Day" is in your hand now. We hope you have found something precious from the story to take along with you, as we have found so many wonderful treasures throughout this time.