Follow the journey of a mysterious girl, as she must complete her given task to fulfill her wish. To obtain her wish she must pass the test within four seasons.

It starts out when Kobato arrives at a park, stating that in order to achieve her wish, she will try her best, with Ioryogi in her purse. Ioryogi interrogates her with a series of questions such as What is your wish? with Kobato responding, saying that there's somewhere she wants to go. They head out so Kobato can have her test, and if she does well, she will get the bottle that she must collect with fragments of people's hearts that she healed.The first person she encounters is a busy lady who doesn't have time to take out the trash. She accidentally leaves a trash bag next to Kobato, and Ioryogi says that this is her next test: what she will do with the trash bag. Kobato wanders around and finds the place where trash bags are placed. Then, she sees crows surrounding the area, wanting the trash, and decides to open the trash bag and let the crows eat what's in it. The crows all chase after her. After running away, two men approach her, asking her if she's alone and that they'll treat them to tea. Kobato doesn't know what this means and says she'll go since they're treating. However, Ioryogi knows what is going on and shoots fire at them. The men are annoyed and are about to punch her when Fujimoto arrives and saves her and then runs away. Kobato wants to say thanks, but Fujimoto responds by saying that she shouldn't make such a big deal about it. She then goes to the Hanami Festival because there are a lot of people there.—RetroCrush

The friendly and sincere Kobato Hanato has a wish to go to a particular place no matter what. To fulfill this desire, she is tasked with helping people in their times of distress. For each mended broken heart, a small candy-like fragment is produced and fills a special bottle. Once the bottle is full, her wish will be granted. As Kobato carries out her mission alongside her stuffed toy companion, Ioryogi, she encounters various people troubled by their different situations. From a child struggling with his parents, a high school girl troubled about romance, and everything in between, Kobato's naturally sweet smile and outgoing personality are ready to brighten their day!.—MAL Rewrite