The book tells the story of Marsy, a little alien from Mars who travels to Earth and meets siblings Luni and Wenny there. Marsy has red skin, black ant eyes, and two antennae on her head, while Luni has red hair, light skin, and blue eyes, and Wenny is dark-skinned with brown eyes and short black hair.

The book begins with Marsy, Luni and Wenny meeting for the first time and becoming instant friends. They explore the garden together and tell each other stories about their home planets.

The friendship between the three grows fast and they decide to embark on an exciting space journey together. Marsy, who comes from Mars, helps them build a spaceship and they embark on an adventure in space.

During their journey they visit different planets, discover fascinating worlds and friendly aliens. You experience many exciting adventures and learn a lot about yourself and the universe.

Eventually, after some time, they return to Earth and are warmly welcomed by their families. They share their experiences and gifts from outer space.

At the end of the book, it is emphasized that the friendship between Marsy, Luni, and Wenny is strong and enduring. They promise each other to always be there for each other and to experience many more adventures together.

The book conveys important messages about friendship, cooperation and the joy of discovering and exploring new worlds. It inspires readers to pursue their dreams and appreciate the diversity of the universe