Yes, several units of Akizuki class and Takanami class provide fleet screen objectives and responsibility. They support the units of Kongo and Atago BMDs that also are assigned to the 1st Fleet of the JMSDF.
The pictures don't show it, but there were some several units of Oyashio and Soryu subs.
Here's a better shot of the JS Akizuki next to an auxiliary resupply ship assigned to the 1st Fleet.
hehehe, i guess they were doing anti-sub exercises , too. LOL!
I guess it was aimed at aliens from Mars.