After School (Houkago)
Graduation (Sotsugyou)
Tenshi no Mimi
Classmate (Doukyuusei)
The Home Where I Died (Mukashi Boku ga Shinda Ie)
The Boy Who Controlled the Rainbow (Niji wo Ayatsuru Shounen)
Poisonous Laughs Novel (Dokushou Shousetsu)
The Rule of the Detective (Meitantei no Okite)
Detective Galileo (Tantei Galileo)
Just One More Lie (Uso wo Mou Hitotsu Dake)
Foresight Dream (Yochimu)
One-sided Love (Kataomoi)
Dark Laughs Novel (Kokushou Shousetsu)
Lakeside
Letter (Tegami)
Dark Laughs Novel (Kokushou Shousetsu) (Shueisha Bunko)
The Devotion of Suspect X (Yougisha X no Kenshin)
The Anguish of Galileo (Galileo no Kunou)
Crooked Laughs Novel (Waishou Shousetsu)
Salvation of a Saint (Seijo no Kyuusai)
Whose Cuckoo Eggs (Kakkou no Tamago wa Dare no Mono)
A Midsummer's Equation (Manatsu no Houteishiki)
Keigo Higashino Mystery 'Silver Hijack (Hakugin Jakku)'
Keigo Higashino Mystery 'Cheers with a Wink (Uinku de Kampai)'