根据同名小说改编|「冰菓」是日本推理作家米泽穗信2001年荣获第五届角川学园小说大赏「少年推理&恐怖部门」奖励赏的出道作品，就如得奖的名衔一般，「冰菓」是一部属于少年推理的作品。在其他正要展开「玫瑰色」高中生活的高中生中，本作的男主角折木奉太郎却是一个「灰色」的节能主义者，即凡没必要的事不做，因为不想后悔，给人说他疏离、厌世也没所谓，因为这就是他的作风。这样的他，却因为姐姐的命令而进入了濒临废社的「古籍研究社」，虽然好不容易招到了四名新社员，但却由卷入了三十二年前社长突然逃学的谜团之中。而社长当年留下命名为「冰菓」的社刊，内里究竟又隐藏了什么引人落泪的讯息…根 ---------------- Oreki Houtarou is an "energy-saver" kind of guy, who expends as little energy as possible to do only things he has to. When he starts high school, his older sister sends him a letter asking him to join the Classics Club. The club meant a lot to her, and its number of members has been reduced to zero. Houtarou reluctantly signs up for the club, only to find that someone else has joined, too! She's Chitanda Eru, a cute, big-eyed girl with an overwhelming sense of curiosity. A mystery crops up that catches Eru's interest, and also draws in Houtarou's friend, Fukube Satoshi. They continue solving mundane mysteries together, and soon they draw in Satoshi and Houtarou's friend, Ibara Mayaka, as well. Mayaka has had a blatant crush on Satoshi since middle school, but he always fends off her advances. Together, they search for the truth in a mystery that involves the history of the Classics Club.