User blog comment:Nayuta Ito/Ita-Chihaya number/@comment-24509095-20140823082542/@comment-25337554-20140823084615

Thw word "ita" means "anime-like" in Japanese, and 39 can be read "Miku" in Japanese.

As you may know, "Miku" means "Hatsune Miku."

That's why I used 39 instead of 3.