Ichika Yami has an overly serious and threatening demeanor, and often resorts to physical violence to make a point. She is described as too aggressive, with intentions of killing, and has a cold, dismissive attitude, especially towards foreigners. Despite her harsh and serious disposition, she has shown a range of personalities, including being mean and speaking normally. She was resented by her father for being born a girl, thinking that she couldn't fight and would be deadweight in their clan