It started off peculiarly; first, his domestic cat refused to let him cuddle it. Lin Qiushi soon found that a sense of disharmony and incongruity began to pervade everything around him. Then, one odd day, he pushed open a door, and he discovered that the hallway he was familiar with turned into a boundless corridor. At both ends of this corridor were twelve, identical iron gates. Thus, the story began.
(Source: Goodreads) ~~ Adapted from the web novel "Kaleidoscope of Death" (死亡万花筒) by Xi Zi Xu (西子绪).