襟首 (Erikubi)

Background
I'll keep moving, from your neck to your bottom A song about bondage and sex. Stated by Machigerita to simply be "erotic". It's his first vocaloid song to be tagged as "Erogerita" which is usually given to his covers.

The original version was going to be more explicit, but was later toned down.

This song has entered the Hall of Fame.