"My bitter and hot spice, I'll give it to you right now. My unforgettably wonderful taste, can you feel it throughout your body?"

-Kagamine Len

This womanizer had known her since they were in high school, since he was just a virgin with raging hormones, but now, in university, he's the guy who can win over any woman, so why is she the only one he can't get into his bed?

(Note: Besides the fact that this is an age-up, Rin is described here as Len's twin sister who disapproves of his behavior.)