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Long ago, Shimada Chiyo and Nishizumi Shiho met each other, and then… Shimada Arisu and Nishizumi Miho met. From there, the rivalry between them started, thus I came up with the title, "Better Half".

In other words, a lonely prodigy finds an equal they can be friends with. When I see Arisu having so much fun in the OVA and Das Finale, I think to myself, "I'm so glad you're here." -Tewarusa (Taken from the author's original Pixiv post)