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.