Gu Linyuan's roommate Wen Rangzhi died silently one night.
The cause of death was cardiac arrest and the medical examiner said it was natural death.
But before Wen Rangzhi died, he frequently stared at his phone and laughed. After his death, his phone automatically restored its factory settings.
Before Wen Rangzhi's first seven days, there was an APP in Gu Linyuan's phone that couldn't be deleted.
It has a black background, white hands, and a line of small words written under the icon - "Destroy and Make a Wish".
