Nice OVA. When it was created, obviously, they tried to please all the audiences at once, so it turned out to be extremely, clumsily cute, like her main character.
The story of a schoolgirl detective (whose age also jumps back and forth) with a revolver loaded with silver bullets, who rides into other people's dreams on a convertible with a rocket launcher accompanied by a kitten and a puppy is a bold idea.
All this with an abundance of fan service and "educational" inserts that destroy the fourth wall, dedicated to informing viewers about the latest scientific discoveries about the nature of human sleep.
Everything in total looks very nice and homely. A domestic translation (Happy, AlexMalkavian) with comments in a separate text only strengthens this general impression.
