Investigation Team No. 1

The All-Personality Investigator

[Premise: Mysterious cases, deduction, personality switching, with a focus on scientific investigation and reasoning]

Jiang Tian transmigrates to a parallel world and inhabits the body of a miserable child with the same surname. He keeps a low profile for nearly 20 years, successfully splitting hundreds of personalities in his young mind.

Scientists, philosophers, special forces soldiers, assassins, lawyers, doctors, escape artists, magicians, con artists, engineers, and more: the personalities cover 80% of the world's occupational categories, and they’re still multiplying.

One day, the Ghost Killer personality suddenly awakens. After killing more than a hundred people in a row, it is pursued nationwide, dealing a severe blow to the main personality.

To avoid the main personality finding out and causing all the personalities to be wiped out, Jiang Tian joins forces with some of them to seal the Ghost Killer personality, then chooses to turn himself in.

Facing certain death, he uses a personality he developed to easily escape the death penalty.

In the wake of the death penalty scandal, he catches the eye of the Jiang Province State Security Bureau. The authorities decide to establish an experimental investigative team in his city: Investigation Team No. 1.

Unlike ordinary major-crime units, the organization focuses solely on cases with no apparent culprit, cases that verge on the uncanny.

After joining the organization as team leader, he is faced with one baffling case after another: calls across time and space, consciousness grafting, puppet control, butterfly predictions, quantum curses, and more.

Confronted with criminals who use unconventional methods, he employs all kinds of unexpected scientific techniques to crack seemingly impossible crimes.

Over time, Investigation Team No. 1 gradually becomes known around the world, causing a sensation.

As a result, even the more powerful Bosses lurking behind the "Middle Realm" begin to stir.