The two hearts are in love, but they don’t understand each other. 
Tetsuya’s ex-girlfriend, Junko, shows up. Tetsuya feels he’s being played by Reiko, unable to understand her behavior. He’s moved by Junko’s pure affection and leaves Reiko. Reiko, wanting to believe that “Tetsuya is just using Junko before he makes his move on her,” goes to Junko’s apartment…
Ever since you dumped me six months ago, 
I haven't stopped thinking about you.