You Played a Spirit-Channeling Game, So How Did You Ascend to Immortality?

Lu Zhao accidentally qualifies to test a game called Spirit Communication.

After entering the game, he discovers that not only can he bring its treasures back to the real world, but the ghosts he has subdued and the cultivation he has gained also carry over to reality.

It was supposed to be just a spirit communication game, so how did you end up ascending to immortality through corpse liberation as a ghost cultivator?!