I choo-choo-choose you, Pikachu!!
'Bringing smiles to Tohoku children in the region devastated by the Tohoku earthquake and tsunami of 2011 and wishing for great Tohoku travels for our friends throughout Japan'
The train connects Ichinoseki to Kesennuma with some fun stops along the way. I won't spoil it too much, please visit the official website for more information including scheduled times, and how to purchase a ticket. Or if you'd like to read up on a personal experience, head on over to this Kitakami Times article.