Complex sentence: The series stars Neuro Nōgami, a demon who feeds on mysteries and puzzles comes to the human world to feast on the puzzles offered by Humans who release negative energy from their planned crimes.
Split into simpler sentences: The series stars Neuro Nōgami, a demon who feeds on mysteries and puzzles. One day Neuro decides to come to the human world to feast on the puzzles offered by Humans who release negative enegy from their planned crimes.