"Eira" is a role-playing game developed by the independent team "Gearonin". In this game, you will play a girl named "Rui" who just turned 15 years old. Together with the thoughtful and handsome butler "Ralph", she runs and protects the ancient magic shop left by Rui's grandmother "Eira.

The story of the game tells a world called "Kauldron". A girl named "Rui" just turned 15 years old, she encountered a lot of difficulties after inheriting the magic shop from her grandmother "Eira". All you have to do is to help Rui make choices and deal with life's problems. Of course, these choices will lead to different endings.