Len grew up without any true parents he was only 3 when his mom and dad died in a car crash. At the age of 5 he was adopted in to the rich kagamine family growing up with a beautiful girl Rin kagamine. Len and Rin made all there memory's together they were born the same day and almost look the same even tho not related at all what happens when there freshman year of highschool they fall in love?