In April 2014, eight container sister ships of a new series were commissioned, and two more units were inserted as options in the construction contract. Both options were converted into firm orders in July 2014. The building began in spring 2015 at the shipyard Japan Marine United in Kure, Hiroshima. The first delivered ship of the ten units to be built within end of 2018, was "mv NYK Blue Jay" launched in 2016. All 10 vessels received names of bird species (therefore called the NYK-bird class). The ships are used on the European Far East route and are the largest container ships built in Japan so far, having a maximum container capacity of 14,026 TEU.