＋♂

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Let it go! Um, er, *cough*. Let our pinkost reach you... (u_u)

The video's title lists "Kagamine Len-kun feat. Girls" as the singers. These "Girls" are Hatsune Miku, GUMI, Megurine Luka, and Kagamine Rin in order of appearance. This song can be viewed as the spiritual successor to "Gigantic O.T.N" in terms of style.

The lyrics are about a teenage boy (Len), in the peak of puberty and with his hormones wreaking havoc. As he feels more and more attracted to his female classmates, the guy finds it impossible to concentrate on school, control his urges, or avoid acting like a pervert, much to the girls' dismay.

This song has entered the Hall of Fame.