The first person I loved was my best friend's boyfriend Rena, my best friend Rio, her boyfriend Hajime, and my male friend Daichi. During a one-night, two-day camping trip with the four of them, he learned that "actually, Rio likes Daichi." Rena, who has always been worried about Hajime, has her feelings shaken... and ends up in a relationship with Rio's boyfriend Hajime... The first tag team of youth drama masters Kiyoshi Asagiri and Rena Miyauchi! A truly pure romance drama depicting the heartbreaking love between a man and a woman.