Deng Ming is a young man who grew up alone in a corner of the city. He was abandoned by his biological parents since he was a child and relies on the meager income from odd jobs and midnight snack stalls. He is used to being alone and keeping a distance from everything because he is afraid of losing, so he never gets close.
Until that day, he received a courier from the depths of the universe - an alien intelligent core called "Interstellar Sweetness". This core is the memory crystal left in the universe by an alien princess codenamed "Tangtang" from a distant galaxy. In order to avoid being pursued by hostile forces, she sealed her consciousness and randomly released it to the earth.
Deng Ming inadvertently activated the core, and Tangtang's consciousness awakened. She appeared in front of Deng Ming in a virtual image, promising that as long as Deng Ming helped her find energy fragments scattered on the earth, she could use alien technology to change his life. However, this pair soon attracted the attention of alien pursuers lurking on the earth - they were the vanguard of Tangtang's hostile forces, disguised as human elites, and secretly searched for Tangtang's whereabouts.
Deng Ming was forced to get involved in interstellar disputes. He began to learn how to use the abilities given by Tangtang, and gradually transformed from a lonely, low-class young man into a strong man who could deal with the intrigues of battle, intrigue, and technology. Tangtang was moved by Deng Ming's loneliness and tenacity from her initial mentality of exploitation. During the crisis-ridden journey, the two comforted each other and quietly developed a "sweet pet" bond that spanned the galaxy.
But the pursuers are pressing closer, and the earth has become a battlefield. Deng Ming must protect Tangtang and prevent alien invasion while solving the mystery of his abandoned life experience... Because he discovered that his bloodline also comes from the stars.
