Train☆Train

Train Train (トレィン☆トレィン Torein☆Torein?) is a manga by Eiki Eiki first published in Wings and licensed by Digital Manga Publishing.

Other Sources

 * Train*Train
 * http://www.animenewsnetwork.com/encyclopedia/manga.php?id=9366
 * http://www.animenewsnetwork.com/encyclopedia/releases.php?id=14154