Fifteen-year-old high school student Lin Yanyu rescues an alien on a rainy night and receives alien star marrow, beginning a path of cultivation that uses “qi” to develop the brain. His pursuers carry dark marrow, seeking to reclaim the star marrow and summon their home world's fleet. Keeping his cool, Lin plans how to cultivate qi energy and organize a defense team, overcoming the vanguard's threat and protecting Earth. He has just ninety days left to break through to the sixth stage of brain cultivation and command the main fleet.
