Dakara Watashi wa Korosu koto ni shita

University student Shu Iwata led an ordinary life, giving neither his studies nor his personal life much thought, finding solace in his favorite idol, ANNA. He was blessed with good friends and had no complaints, but the only thing weighing on his mind was his older sister, who had gone missing. One day, Shu meets Yuki Minowa, a woman who bears a striking resemblance to ANNA. While she looks almost exactly like ANNA, her voice is different—she’s a completely different person. Even Shu, who has no interest in romance, begins to take notice of Yuki Minowa, who looks so much like ANNA. All the while, he remains unaware that this woman’s true identity is someone he knows very well—