In the year 3027 of the Interstellar Federation, the "stardust storm" caused by star core failure swept half of the galaxy, and human civilization was on the verge of collapse. Shen Yan, the youngest star core researcher in the Federation, was charged with the top-secret mission of repairing the star core and embarked on a journey across the stars to find the key alone.
He met four completely different girls, but he didn't know that each encounter was a foreshadowing written by fate: the gentle and tough interstellar medical officer Su Qingyuan, who holds the "Key to Life" that can repair genetic damage, is the white moonlight he missed when he was young, and is also the most reliable backing in this crisis; Lin Shuyue, a cold and mysterious descendant of the Star Clan, has the ancient ability to control star power and is the only "container" for star core repair, but relies on and resists him because of his racial mission; Xu Zhiyu, a rational and transparent AI senior researcher, leads the "Conscious Symbiosis" project and can seamlessly connect with interstellar AI. He seems to only focus on academics, but when he is in a desperate situation, he uses code to build the last line of defense for him.
As the stardust storm intensifies, the hostile force "Dark Star Organization" presses harder and harder, and clues to repairing the star core are scattered in the fate of the four girls. Shen Yan must not only collect the keys and save civilization in the interstellar war, but also face the turbulent deep love in his heart - should he return the regrets of his youth, accept the warm joy, protect the bonds of fate, or cherish his close friends?
