Surviving in another world, I made my fortune by selling information.

Qi Bai is an overworked corporate employee from Earth who suffers from recurring nightmares of being chased and burned alive. After a thunderstorm at a dilapidated temple results in her accidental electrocution, she wakes up in a strange world called Angel Star with amnesia. She discovers she now inhabits the body of a girl with the same name, who was admitted to the prestigious Imperial Capital University. A system activates, tasking her with fulfilling the wish of the original soul, who died in a cycle of time loops trying to escape a tragic fate. Qi Bai learns that the original owner was pursued by a noble named Lin Jiashu and ultimately burned to death in a park. To survive, Qi Bai must navigate a rigid class system where status determines one's worth, ranging from White Tier commoners to Purple Tier nobles.

Upon arriving at Imperial Capital University, Qi Bai meets Fu Chaoyang, a fellow freshman who appears friendly but is secretly labeled a heretic. Using an Identity Scanner provided by the system, she discovers his true nature and decides to keep him at arm's length while focusing on her own survival. The society is governed by a Proxy Government and dominated by the Holy Light Church, with a brutal social hierarchy enforced through violence and surveillance. Qi Bai learns that the original Qi Bai was a prodigy from a Talent Institute, trained to serve the elite, but her life was destroyed by the obsession of Lin Jiashu. The system reveals that the original soul's lingering resentment allowed Qi Bai to take her place, and she must now change the fate that led to the girl's death.

The core conflict intensifies when Qi Bai learns that Liu Changyu, a senior student she befriends, is distressed because her younger sister Liu Changluan is trapped in a deadly survival competition at Heze City No. 3 High School. The competition, orchestrated by nobles including Lin Feizhou, forces students to fight for survival with lethal consequences. Qi Bai uses her system points to gather intelligence on the nobles involved and identifies Lin Feizhou as a key figure who is also an enemy of Lin Jiashu. She travels to Heze City and negotiates with Lin Feizhou, offering him information and assistance in his feud with his rival in exchange for his help. Lin Feizhou, intrigued by her boldness and capabilities, agrees to cooperate.

Qi Bai successfully rescues Liu Changluan by exploiting a loophole in the competition rules, turning the girl's teammate into the winning item. This act earns the sincere loyalty of both Liu sisters, completing her first daily task and granting her a Psychic Communication Net. With this tool, she establishes an intelligence network, recruiting a team of engineers and security personnel provided by Lin Feizhou. She forms the Best Know-It-All Agency, positioning herself as a hidden power behind the scenes. The story concludes with Qi Bai having secured a foothold in this dangerous world, building her organization while preparing to confront the larger forces, including the Lin family and the mysterious entities controlling Angel Star, that dictated the original owner's tragic fate.