Iris one day finds herself inside the horror game she had been playing for the past years.
In this game, humans can evolve into greater beings through playing life and death games.
Filled with mysteries, this realm will eventually come to an end by the hands of the enigmatic entity itself!
At first, Iris just wanted to live and survive in this world, but as nostalgia and affection for this game grew in her heart, Iris changes her mind and decided that she will save this world from destruction.
The only problem is that most of the characters she is familiar with had all already fallen into madness and all of her foes are deranged people!
Will Iris be able to survive and save everyone, or will she succumbed to madness and lose herself in this crazy world?