Tantei no Susume ~Kurenai no Reppu Hen

My name is Miki Fujiwara. I'm a totally normal cute high schooler. Things were pretty normal for us until one day at the library, an arrow came shooting! It carried the warning of a future crime by someone known as "Red Cap": the night after next, a bomb will destroy the east campus!? High school detective Miki and her sidekick Sato-kun are on the case!