1987 a murder happened in the property of the Mallarmé-fascinated retired professor Zuimon Ryuuhshirou. At that time among others the great detective Mizuki Masaomi and his assistant Ayui Ikusuke were guests of Zuimon. Of course Mizuki solved the case brilliantly and Ayui created a new novel in his series depiciting Mizukis astonishing achievements. However this work was never collected as a tankoubon volume and remained unfinished in magazine form...
2001 the self-proclaimed great detective Isurugi Gisaku is called on by the editor of a publishing company. He wants to have the case investigated once more, finding it suspicious that this work has not been finished in 14 years. Might there actually be a mistake in Mizuki's deduction...?
