Unbeknownst to him, Aqua's fraternal twin sister, Ruby Hoshino, could be the reincarnation of Sarina Are inclined?ji, one among Gorou's sufferers who was a admirer of Ai. Four years afterwards, Ai is murdered before the twins by the exact same supporter who killed Gorou. The admirer later on commits suicide, but Aqua deduces that the murderer may h