Kagamine Len comes across a cellist's melody when coming to his cousin's school. When he heard her, Len fell in love with the girl. He returns again and again in hopes of hearing it once more, but she never came every time. When he meets shy student, Kagamine Rin, he asks her for help in his search for his one and only love. Originally titled "The Shy Melody"

Rin and Rinto are agents for The Agency and are in charge of protecting Len and Lenka. Although, Len and Lenka aren't aware of Rin and Rinto's doings, since their identities are concealed. Just what will come out of this?

Len is cocky,self-centered jerk all girls are crazy about.Until one day Rin finds out his secret,Rin promises to keep it under one condition, that he must 'obey' her every order. Except, Len finds more than he bargained for. Noncest. Len x Rin.

Mikuo and Rin, Rin is a Phoenix Princess, and Mikuo a Dragon Prince. What happens when Rin is destined to marry but she meets Mikuo? T for some violence, words, and other stuff.