STORY
ぶ厚い雲が空を覆い、植物は枯れ、深刻な酸素不足に陥った地球─。
人類は死期の近い人間の肉体に種を埋め込み、植物へと変える転花技術を開発し、「転花」によって得られるわずかな酸素で光なき世界を生き延びていた。
貧困によって、生きる希望を奪われた神谷トーシローは「転花」を決意し、訪れた国立転花院で、偶然にも職員として働く幼なじみの蓬莱ヨミコと再会する。
その後、施術を受けたトーシローは人間が「転花」によって姿を変えた植物―「霊花」の声が聞こえるという特異な能力が発現し、その能力を買われて、国立転花院の特例臨時職員として働くことになる。
一方、巷では「霊花」による連続殺人事件が発生していた─。
捜査に協力することになったトーシローだが、「霊花」の声を辿って核心に迫っていくほどに、事件は大きく、そして深く様相を変化させていく。
In a distant future where thick clouds cover the sky and most of the planet’s vegetation has withered away, humanity faces a serious oxygen shortage.
A new technology called Transfloration is used to implant seeds in the bodies of those near death, transforming them into plants that will provide a meager amount of oxygen to help prolong the survival of a world without light.
Toshiro Kamiya, a poor young man whose harsh upbringing robbed him of all hope in life, decides he wants to undergo Transfloration and visits Transflora Medical, where he runs into his childhood friend Yomiko Horai, who is a worker there.
After undergoing the procedure, Toshiro gains the special ability to hear the voices of "Spiriflora" — humans who have been turned into plants via Transfloration. Transflora Medical hires him as a Special Temporary Worker, seeking to make use of this ability.
Meanwhile, a series of murders is committed by a Spiriflor.
Toshiro is assigned to help with the investigation, but as the Spiriflor’s voice leads him closer to the truth, the case morphs into something much deeper and more complex than anyone bargained for.
