Gurashachi

is a Japanese light novel series written by Erika Nakamura, with illustrations by Sou. The series began publication on November 10, 2009 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Haruna Akitsushima, a girl who will be a high school student this spring, is an ordinary girl except for being inadvertently nominated within the 10th place in the national ranking (younger brother Takao talk).

She was playing ocarina, a keepsake of her grandmother, at the beach, but she was helped by a "creature" when she was kidnapped by a sudden high wave. And from that "encounter", Hazel's daily life began to contain turbulence little by little.