Spring Ran, the season of cherry blossoms. Fair and futu, decent middle school 3rd year, Haruo Yoshikawa is on his way home, I witness a beautiful girl that I can not think of this world. But its appearance disappeared in an instant. Despite consulting with an inexplicable case with three sisters (Mai natsu, Chiaki, Fuyuno) There were only unconvincing opinions that "Whyley?" Will come back. In case And the next day. If you look at the female face you have transferred to your class, what, A beautiful girl at that time! In case Besides, she is "gunning" all the spring students!