This CD contains a character image song for the TV anime Nogizaka Haruka no Himitsu (乃木坂春香の秘密).
The tracks are as follows.
Track 2 "Hitosashiyubi Quiet!" is a solo version by Mai, but it also contains some chorus parts by the other girls. This version is a faster version than the original ED.
Track 4 is a short talk by Mai as Mika (around 1 minute).
[Nogizaka Haruka no Himitsu CDs]
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