|Section||Niigata ↔ Sakata|
|Prefecture||Niigata / Yamagata Prefecture|
Debuting in October 2019, the KAIRI (海里) is the newest Joyful Train. Running between Niigata and Sakata, its name comes from the beautiful sea (海) and countryside (里) that are plentiful in the area. Travel packages (meal + train fare) created especially for the KAIRI that feature gastronomic delights from the Niigata and Shonai regions are also available.