Bonds are created like so

Social links are never an easy thing to obtain.

When their parents leave to go work overseas for a year, Yu and Yashiro are forced to move to the small town of Yasoinaba to live with their uncle. A new adventure unfolds and a mystery begins to unravel for them. Yashiro, who doesn't really care about forming bonds with people, will have to put her grudges aside in order to make it through this.

After all, bonds are the true power.