1. A network system comprising: a plurality of cloud systems, each of the plurality of cloud systems including a plurality of servers, each of the plurality of servers allowing virtual machines to run thereon, wherein a first cloud system of the plurality of cloud systems includes: a first generator configured to generate, on the basis of first performance information regarding one virtual machine and a first predetermined coefficient predetermined for the first cloud system, second performance information regarding the one virtual machine, the first performance information being included in a first augmented image of the one virtual machine, the first augmented image being created in a second cloud system other than the first cloud system, the second cloud system being included in the plurality of cloud systems, and a deployer configured to deploy the one virtual machine on one of the plurality of servers included in the first cloud system on the basis of the generated second performance information, wherein the second cloud system includes: a first acquirer configured to acquire third performance information regarding the one virtual machine in the second cloud system, a second generator configured to generate the first performance information by converting the acquired third performance information on the basis of a second coefficient predetermined for the second cloud system, an image creator configured to create an initial image of the one virtual machine, and an attacher configured to attach the generated first performance information to the created initial image to create the first augmented image.