The series follows Misaki, a 14-year-old schoolgirl that comes to the town of Hohopo to inherit her grandfather's house and land.

Once there she soon discovers that the lake contains a "hohopo", a creature similar to the Loch Ness Monster in appearance that has the capability to transform into a young boy.

Naming him Neo, Misaki soon has to keep him safe from people that would harm him or exploit him in order to gain fortune and fame.

As a result a hitman that came to the town looking for the ransom money starts hunting for Neo in order to sell him as a strange find.

Anime News Network's Jason Thompson praised the series' artwork and storyline.