Soft and bubbly office lady Ayaka is madly in love with her senior at work, Hiroko! Two lovestruck coworkers who both think the other is straight totally crush on each other...
Hiroko decides to go after Ayaka, who left home due to a misunderstanding. Amid arguments and heartfelt confessions, they finally reconcile. That night, they also gather the courage to begin their 'plan of attack.'