α+ Unleashes “Seishun no Effect”: A Rush of Youthful Emotion Captures Hearts
VAZ and Twin Planet, two powerhouses in the entertainment industry, have officially launched their collaborative 11-member idol group, α+ (Alpha Plus). On February 18, 2026, the group made its grand debut with the digital release of their 1st single, “Seishun no Effect” (Effect of Youth), accompanied by the premiere of its vibrant music video. This marks a significant moment for the idol world, as α+ prepares to bring a wave of refreshing, energetic performances.
The debut single, “Seishun no Effect,” is an upbeat and quintessential idol song that encapsulates the exhilarating rush of youth. Penned by Hiroko Yamazaki and Kohei Okada, with music and arrangement by the renowned Terukazu Tsurusaki, the track tells the story of a girl caught in a mental debate, hesitant to pursue “meaningless efforts.” However, a pure feeling of affection—the “speed of love”—propels her to break free from her shell. The title “Effect” cleverly alludes to more than just SNS filters; it symbolizes how genuine, heartfelt emotions can transform one’s world. The closing line, “I’ll tell them, Go for it, me!” resonates as a powerful cheer-up anthem for listeners, encouraging them to take that crucial first step.
This vibrant track has also been chosen as the theme song for “Meruputi Audition 2026,” a major project by the popular YouTube channel “Meruputi,” which boasts a strong following among junior and senior high school girls. Through “Seishun no Effect,” α+ aims to inspire candidates and viewers alike, fostering the courage to pursue dreams and embark on new challenges.
A Grand Live Debut on the Horizon
α+ is set to make their live debut on March 15, 2026, at the CREATEs presents IDOL RUNWAY COLLECTION 2026 Supported by TGC, a premier idol and fashion event held at Yoyogi National Gymnasium. Performing as the opening act, the group will showcase their talents for the very first time on such a grand stage.
Event Details:
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Date: March 15, 2026 (Sunday)
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Venue: Yoyogi National Gymnasium (2-1-1 Jinnan, Shibuya-ku, Tokyo 150-0041)
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Official Site: https://idolrunwaycollection.jp/
The Vision of α+
Formed by 11 members, including Seno Mahoko—a former center of the popular YouTube channel “Meruputi”—α+ embodies the slogan, “Cheer up everyone’s ‘I want to try!’ around the world!” In an age where “perfected” online personas often receive validation, α+ aims to be an idol group that connects with the true, unspoken feelings deep within people’s hearts, encouraging them to bravely take that first step.
Official α+ Links:
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Official Website: https://alphaplus-official.com/
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YouTube: @alphaplus_idol
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TikTok: @alphaplus_idol
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Instagram: @alphaplus_idol
A Message from Seno Mahoko
Member Seno Mahoko shared her thoughts on the debut single: “I love how the song captures the protagonist’s emotional journey—from being caught in a mental loop about someone they like, to the moment they realize their true feelings, and how that love accelerates. The line “I never knew such acceleration” in the final chorus speaks to that brand new feeling of discovering one’s deepest truths. I want to cherish that emotion as I sing for everyone.”
She continued, “I hope this song becomes a catalyst for anyone, not just in romance, but in anything they want to challenge or work hard for, to listen to their inner voice. All 11 members will pour their hearts into making this a wonderful song!”
Debut Commemoration Campaigns
To celebrate their debut, α+ has launched two exciting campaigns:
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“What did you leave undone before graduation? α+ will cheer you up!” Campaign (Students Only)
Whether it’s expressing feelings to someone, creating unforgettable memories with friends, or conveying gratitude to parents, α+ members are ready to support students in fulfilling their pre-graduation goals. All kinds of requests are welcome via the application form.
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Application Period: February 18, 2026, 10:00 to February 28, 2026, 23:59 (JST)
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Application Form: https://forms.gle/sLYwkx44RiNVCzun8
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“Seishun no Effect” TikTok Campaign
Participants who post on TikTok using the “Seishun no Effect” song will be entered into a lottery to win a signed jacket by α+ members. Dance challenges, α+ highlight videos, or slideshows of personal memories are all encouraged.
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Application Period: Currently open until February 28, 2026, 23:59 (JST)
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Details: https://alphaplus-official.com/news/public/_/binqg7pp6yxafo3d.html
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With their refreshing sound, inspiring message, and dynamic presence, α+ is poised to make a significant impact on kawaii idol culture, both in Japan and potentially, internationally. Their debut single and upcoming live performance signal the arrival of a group dedicated to empowering individuals to embrace their true selves and pursue their aspirations.
