Prologue

"Tetsuya, no more sneaking off to change yourself. You're an official GoM member of the first string, so you shall stay here and change with us."

".....Alright, Akashi-kun."

Shirt off.

Pants off.

.....Not a flat chest nor baggy male undergarments.

"WHA!!!!! K-K-KUROKOCCHI'S A.....!!!!!!"

"WTF AKASHI?! TETSU?! H-HE-SHE....BOOBS!!!"

"H-How indecent! Wh-What is this...?!"

"E.....Eh....? *munch munch* What the....?"

"Akashi-kun, you look pale. And your nose is bleeding-Ah, he fainted."

And that's when everything changed in the Teiko Middle School Basketball Club for the GoM when they all finally came to realization:

Kuroko's a girl.