Author's Note!!

Yuka Hasegawa is friends with Tetsuya Kuroko since in their childhood, after one year of their friendship... Tetsuya leave and transfer to another school, Yuka was left there and always waiting for him to see each other again.

But, while waiting...
Yuka had a terrible accident and she had an amnesia after that, but Tetsuya didn't know about this.

After a few years of sleeping, she woke up and saw the professor in front of her while smiling.

In her new memory, she met Ai Mikaze, an idol of Shining agency who belongs to the group of QUARTET NIGHT.

Yuka was recommended by Shining Saotome to be an idol and also a composer of the QUARTET NIGHT.

What will happen if the two childhood friends meet again?