Olivia later said that her musical expression had changed, that the hiatus was because she had been "feeling pretty depressed," and "started to notice and realize a lot of her faults" and that her style "has gotten a lot more detailed," it's "pleasing to the ear"and "a lot cooler". Olivia had to research Reira's character, as she "never really read manga". "A Little Pain" is specifically tailored to the point of view of Reira. She states, "It was fun to sing as another person. Like an actress. I wrote the lyrics with the image that Reira looked to herself and wrote it. But because she's Reira, she has to help all around her, and that’s why it seems as though she sings for everyone, but she sings for herself. I wrote it with that idea in my mind."