The start of the manga feels great. First year student Teiichi discovers he can see Yukko, a ghost who immediately falls for him. From here he founds a paranormal investigation club to unravel Yukko's past.
The first ten or so chapters work great, but the manga takes a nosedive for the next 20 or so as the characters explore paranormal sightings throughout the school. Each chapter becomes a slog to get through, focusing on fleeting characters that contribute little to the chemistry between Yukko and Teiichi. These stories do ultimately contribute to the climax, but drag on for far longer than needed. The intention appears to be suspense around the intrigue of each story, but they are too boring to be of much interest.
More on the romance, there's little in the way of devleopment. Its obvious their love is mutual. Despite that they never move on from the teasing comedy for most of the story. Reading for the romance is, as such, a waste of time.
The story's positives are a strong introduction and ending. After the bland middle chapters, the final arcs bring back the suspense and excitement the first chapters brought, giving a satisfying conclusion. Along with this, the artwork on this is really good. The faces are expressive and pleasant to look at, in particular side shots. Shots of dark areas give off unease and anxiety which contribute to the story. These positives save the manga.
While the story's art, starting and ending chapters are great, the repetitive and dull middle chapters are simply too damning.
6/10.