Carry on Bag Confusion

Hi all! Having some last minute panic as I checked the JAL website for weight limits, and saw that carry on bags must weigh less than 10kg (22lbs) TOTAL rather than each like I originally thought. I’m was about to start repacking but wanted to get some clarification.

Does a backpack count as carry on bags, or is that considered separately?

EDIT: Damn, it’s how I feared. I appreciate the quick responses! Time to repack for my flight tomorrow.

by ZeHoodini