He cares a lot of Nekohime, like when he meets Lucian for the first time, he were hostile towards him. He can do anything for her, like when he captured the fort during the siege. He also helped Lucian when he was hacked to get his items back.
Cloud may be a reference to Cloud Strife, the main character of Final Fantasy VII. They share a lot of common points like the hair color. Their clothes are very similar and their sword too.