Misaki is your typical schoolgirl around the age of 14. She is quick to make friends, and is protective of those close to her. She recently moved from Tokyo City to her recently deceased Grandfather's house on Hohoro Lake. Misaki was only there as a very small child, so she has little to no memory of the time she spent there. Recently she has begun having flashbacks where she plays in her Grandfather's lab while he conducted experiments. One day while walking home with her new friend, Sanae, she is pelted with small toys resembling the Loch Ness monster, which Sanae explains is the local legend - Hohopo. While she goes to find who threw them, she slips down the hill and discovers the real-life version staring at her from the lake.