Hiroyuki Saeki

The referendum whether nuclear power plants should be banned has been held in Japan. People must decide their future.

Kenichi Ichihara is absorbed in surfing, because he admires his father who is also a surfer. His father dies in an unexpected accident. Since then, Kenichi is estranged from surfing and the sea. One summer, by recommendation of Kenichi's friends Makoto Uehara and Daijiro Ohara, Kenichi decides to go to the sea. On the way to the sea, Kenichi meets two women Tsugumi and Emiko. He is pickpocketed by the women. When Kenichi gets to the sea, he happens to meet Tsugumi and Emiko again.

女子高を卒業して7年がたった高橋香月（峯岸みなみ）ら仲がいい6人は、廃校となった母校で行われた同窓会で再び顔を合わせる。ところが、停電が起こった間に同級生の1人が胸を撃ち抜かれ絶命。騒然とする中、全員の携帯電話に「犯人は誰だ？」というメールが送られてくる。送り主の名前を見て驚いた香月たちは、事件を解決すべく昔の記憶をたどる。