Omniscript

Avior Aviideus is born with an impossibly rare condition. The particles that make him up are phasing in and out of the universe. To save his life, doctors upload his consciousness into the Simulation, where he spends his childhood in infinite digital freedom.
Now a teenager, the doctors stabilize his particles and reintroduce his consciousness to his body. Avior is told that he has one phase left in his particles. If he can phase into that other universe, the Interverse, one more time, and exert every ounce of energy he has, he can generate a strand of DNA inside himself called the Omniscript. The Omniscript has the power to cure the world of all diseases and allow people to remain young and healthy for double the time. Avior undertakes his destiny and begins an arduous training regimen to prepare, meeting friends along the way that change his life in astronomical ways.