Not to be confused with the Star of Destiny under the same name.
Mina was a cat belonging to the young magician Lotte. Somehow, the two got separated during the events of the Toran Liberation War and it affected Lotte greatly. She requested that Tir McDohl, the leader of the Liberation Army who wanted her help in the war, find her cat and bring her back. Mina was found, quietly wandering in the little village of Kaku. Tir managed to catch her and thus gained Lotte's help.
Following the war, Mina stayed with Lotte and lived happily ever after, along with Momo, Lotte's other cat.