Board Thread:General Discussion/@comment-4435241-20141030190751/@comment-2164259-20150102142340

The mood influences whether or not they get miss/critical during a command battle. A blue mood indicates higher chances of misses, an orange one higher chances for criticals. Note that being on a lower mood doesn't automatically mean your character can't get a critical, and the same is true for orange/miss. The day you acquire a player, he's at his max mood.

Also, note that the Technique stat SHOULD somewhat influence your critical/miss ratio. A higher technique gives you less misses and more criticals, if I remember correctly.