What if an alien came to Earth not to invade, but just to ride the swings?

Don't panic! They aren't here for an invasion; they are here to swing! Dubi-an travels through space with his family every summer, discovering new planets. When he finally sees Earth—with its deep blue oceans, lush green forests, humans who change clothes every day, and, most importantly, beautiful swings—he is overjoyed.

Although his family forbids him from riding this "primitive" mechanism due to safety concerns and bans him from building a similar "thing" on their home planet, Bis, Dubi-an's love for swinging cannot be stopped. Tanşıl Kılıç weaves an extraordinary story of friendship and excitement, proving that sometimes the simplest joys in the universe are worth traveling light-years for.