The Book 3
2023 EP by Yoasobi
The Book 3 is the third Japanese-language EP (sixth overall) by Japanese duo Yoasobi. It was released on October 4, 2023, through Sony Music Entertainment Japan, one year and ten months after their second EP The Book 2 (2021). Continuing with the "reading CD" concept as previous records, the EP spans electropop and synth-pop genres, comprising ten tracks, which were solely written and produced by one half of the duo Ayase.
Eight singles preceded The Book 3, including top-five anime opening theme songs: Mobile Suit Gundam: The Witch from Mercury's "Shukufuku", Oshi no Ko's "Idol", and Frieren: Beyond Journey's End's "Yūsha". Commercially, The Book 3 peaked at number two on both the Oricon Albums Chart and Billboard Japan Hot Albums, and was certified gold by the Recording Industry Association of Japan (RIAJ) for shipments of over 100,000 units. The EP won Finalist Award (Red) at the 16th CD Shop Awards.
Background and release
Yoasobi released their first two extended plays in 2021—The Book and The Book 2—with the concept of a "reading CD" with a binder package. The EPs peaked at number two on the Oricon Albums Chart, In 2021, the duo collaborated with Naoki Prize-winning four novelists Rio Shimamoto, Mizuki Tsujimura, Miyuki Miyabe, and Eto Mori for the short story collection Hajimete no, published in March 2022. It inspired four songs "Mr.", "Suki da", "Umi no Manimani", and "Seventeen", which were included on a companion EP. Apart from the project, the duo released the theme song for Universal Studios Japan's 2023 Unibaru campaign "Adventure", and two anime series opening themes: "Shukufuku" for Mobile Suit Gundam: The Witch from Mercury and "Idol" for Oshi no Ko, which the latter became the duo's most successful song to date in both Japan and overseas.
On September 1, 2023, Yoasobi announced their third extended play, titled The Book 3, along with its track list and album cover, scheduled for release on October 4.
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