Kouhei Kagami is a Japanese student with excellent grades and a fairly normal social life, but feels empty and transparent inside. The story revolves a pivotal moment in Kouhei's life where three girls, that have more problems than himself, meet him for the first time and soon make his life a roller coaster of emotions. Kouhei must choose to save one of them from their own despair.[2]

The plot follows the same basic route for the first half of the game. Kouhei goes about his life and makes friends with three main girls: Aeka, Mizuki, and Nekoko.