Touma Kojirou no Tantei File 2 ~Seikokuka Gakuen Satsujin Jiken~

When her prince didn't come, Snow White became a foul, twisted black murderess...

STORY
It had been several months since the "The Mysterious Opera Murder".
My life was the same as usual. I'm Kojiro Toma, boy detective.
Me and my childhood friend Youko ran a crime-solving business.

It was another normal day when Yuuko's junior from schooldays came to ask for help.
It seemed to involve someone named Snow Black.

"That fable about the girl and the seven little guys and the poisoned apple?"

At first I thought it was a prank, but the following week we
took a trip out to St Blackbirch Academy, where a studnt
had died clutching a rotten apple in her hands.

We're on the case!

[From DLsite English]