+Alpha

The album was released in three formats: two limited editions (CD+Blu-ray/DVD) and a regular edition.^[2] The title +Alpha was proposed by member Shunsuke Michieda and reflects the group's intention to expand their musical range by incorporating a wider variety of styles, including more emotional and intense songs alongside their established pop sound.^[3]

The album contains a total of 14 tracks common to all editions, including the singles "Make Up Day", "Missing", and "I Wish", as well as "New Classic", which was used in a commercial campaign for AOKI.^[1][4] In addition, each edition includes different bonus tracks. Limited Edition 2 features the group's first unit songs, divided into three member combinations, while Limited Edition 1 includes music videos and behind-the-scenes footage for "Alpha" and "New Classic". The regular edition includes additional bonus tracks such as "Chuki Chuki Honeymoon" and "Tokyo AM1:00".^[4]

The lead track "Alpha" was released with a full music video on the group's official YouTube channel more than a month prior to the album's release, surpassing 6 million views by early July 2024.^[5] The song has been described as embodying the group's signature "bright" and "pop" style while also demonstrating their evolving performance capabilities.^[5] In particular, the group's ability to balance "freshness" with their established identity has been highlighted, supported by the expressive performance styles of members such as Daigo Nishihata and Shunsuke Michieda.^[5]

On April 24, 2024, the group announced their arena tour "Naniwa Danshi LIVE TOUR 2024 '+Alpha'" via an Instagram livestream. The tour ran from June 28 to October 6, 2024, across nine cities in Japan, totaling 42 performances.^[6]

On August 13, 2024, it was announced during a live performance at Yokohama Arena that a digital version titled +Alpha (Special Edition), including all bonus tracks, would be released on streaming platforms.^[7]

+Alpha debuted at number one on the Oricon Weekly Albums Chart, marking Naniwa Danshi's third consecutive number-one album since their debut.^[8] It also topped the Oricon Combined Albums Chart in the same week.^[9] The album ranked first on the Oricon Monthly Albums Chart for June 2024 and was later ranked seventh on the Oricon Year-end Albums Chart for 2024.^[10][11]

On Billboard Japan, the album also achieved strong commercial success. It debuted at number one on the Top Albums Sales chart with over 360,000 copies sold in its first week.^[12] It further topped the Billboard Japan Hot Albums chart,^[13] and later ranked seventh on the year-end Top Albums Sales chart and tenth on the year-end Hot Albums chart for 2024.^[14][15]

The album also reached number three on the Billboard Japan Download Albums chart upon its digital release.^[16]