Once kept in a tribe to protect livestock and children, Yuuna was full of love and a great companion, happy to please humans and look after the little ones. After failing to protect one of the children against a rogue tokota, despite her best work, she had been banished from the tribe. She kept trying to come back in the tribe only to be driven away by humans each time by use of brute force. After countless tries, she decided to move on to a new territory, her hatred towards human-kind growing day by day due to all the past trauma. Despise hating humans so much, TCA has marked Yuuna to be tamed, hoping someone would be able to show her that not every human is as bad as her ex pack-mates.