It was written by Edogawa Ranpo. His writing was known for its exploration of the strange and the abnormal in human behavior. In 'the human chair short story', he used his unique style to bring out a sense of horror and discomfort, which is characteristic of many of his works.
It's a very strange and often disturbing short story. It involves a rather macabre concept where a person hides inside a chair in a very unusual and unexpected way. The story plays with themes of obsession, the unexpected in close quarters, and a sense of the uncanny.
No, they aren't similar. The characters, settings, and plot developments in the two mangas are very different. 'Are You Human Too' is complex and futuristic, whereas 'Absolute Boyfriend' is more straightforward and emotional.
It depends on personal preference. If you like visual storytelling, the manga might be more engaging as it shows the characters and scenes directly. But if you enjoy delving deep into a character's psyche through detailed text, the novel could be more appealing.