It was the last week of summer.  ChanThou and her boyfriend, YunHo, wanted to spend the last days of summer at YunHo's beach house.  It was all fun and games at first, but what happens when things start to go bad because of a misunderstanding between YunHo and his ex, Seul Gi?  ChanThou tries to run away from the situation, but things only get worse.  How will Summer 09 end?