High-Rise Invasion

Synopsis

At sixteen, Yuri Honjou sees a gruesome killing with an axe, which makes her run into an empty building where all the ways out mysteriously close shut after her. Scared and by herself, she goes up to the roof and finds a strange scene of empty tall buildings spreading without end around her. With no chance left, Yuri decides to keep going and find her brother, who she finds out is also stuck in this odd world. But, killers wearing masks who enjoy pain and murder might stop her journey before it starts.