Adachi Rei (足あ立だちレイ) is a vocal synthesizer character created by missile39 initially for the UTAU vocal synthesizer program and released on October 2019. In October 2021, a text-to-speech library was released for her in collaboration with AI, Inc.'s A.I.VOICE software under the name REPLIVOICE Adachi Rei. She has also received a fan-made conversion of her original CV UTAU voicebank to a VCV voicebank by Near,[1], a DeepVocal port by ematares[2], and a DiffSinger port by