Ivy is a girl from a previous life that was cut short who is reborn in another world, where people hold multiple skills and are ranked with stars; however, she only has the no star Tamer skill. She is hated and abused by her once loving family because of it, forcing Ivy to live in the forest after fleeing her now abusive home; however, the local fortune teller takes pity on Ivy, educating and supplying her. After the fortune teller passes away years later, Ivy leaves the area and finds a weak, dying slime; she tames it, naming her new familiar Sora.
As the story progresses, it is revealed the current headman of Ivy's village is shortsighted; enforcing the bigotry that drove Ivy off and ignoring the advice of the fortune teller, leading the village into decline. He brands any villagers who desert as criminals and tries desperately to maintain his reputation, which slowly takes a toll on his sanity.