In the future world, humans have higher-dimensional power.
They have opened up the barriers between the virtual and real worlds and created a utopian "spiritual realm" of human consciousness.
The physical world is gradually abandoned. People leave their bodies on the earth to be taken care of by artificial intelligence. They are immersed in the virtual world and cannot extricate themselves, gradually forgetting the most real world.
Until an accident happened, everyone in the Sunflower Orphanage was pulled into the spiritual realm.
With investigation and exploration, a corner of the dark curtain was lifted, and the truth gradually emerged.
A big lie, and the net has been closed since then...