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Sasagawa Sasa (笹川ささ) is a member of BANZAI JAPAN.

She joined the group on December 6, 2015, as part of ASHIGARU JAPAN and was promoted to a full member on February 7, 2016. She is also a member of the unit Scanty♭.

Sasa Sasagawa: A Vibrant Evangelist of Niigata in BANZAI JAPAN

Sasa Sasagawa, born and raised in Niigata Prefecture, Japan, is a dynamic and spirited member of the Japanese idol group BANZAI JAPAN, a J-Pop ensemble dedicated to promoting the cultural charms of Japan’s 47 prefectures. Known for her infectious positivity, unique fashion sense, and deep-rooted connection to her hometown, Sasagawa has carved out a distinctive presence in the idol world since joining the group in 2015. As the “Evangelist of NIN-NIN Niigata,” she embodies the spirit of her region, bringing its traditions, landscapes, and vibrancy to fans both in Japan and abroad. This exploration delves into Sasagawa’s journey, her role in BANZAI JAPAN, her personal characteristics, and her contributions to the group’s mission, offering a comprehensive look at her impact as an idol and cultural ambassador.
Early Life and Connection to Niigata
Sasa Sasagawa hails from Niigata, a region renowned for its snow-covered landscapes, rice fields, and rich cultural heritage, including the legacy of the revered warlord Kenshin Uesugi. Her deep connection to her hometown is a cornerstone of her identity as an idol. Niigata, often referred to as the “snow country,” is famous for its stunning natural beauty, vibrant festivals, and culinary delights like premium rice and sake. Sasagawa’s pride in her roots is evident in her public persona, where she frequently highlights Niigata’s attractions, such as its spectacular hanabi (fireworks) displays, which draw visitors from across Japan. Her local introduction, “Passing through the tunnel, you’ll see the snow country and the rice fields! Come visit Niigata, Echigo province of Lord Kenshin Uesugi!” encapsulates her enthusiasm for sharing her region’s heritage with the world.
Born under the Aries zodiac sign with blood type O, Sasagawa’s energetic and outgoing nature aligns with her astrological profile. Her nickname, “Sasamaru,” reflects her approachable and playful demeanor, endearing her to fans. Growing up in Niigata, she developed a love for activities that shaped her eclectic personality, including eating out, traveling, solving mysteries, and gaming. These hobbies not only inform her personal interests but also influence her interactions with fans, where she often shares stories of her adventures and local discoveries.
Journey to BANZAI JAPAN
BANZAI JAPAN, formed on May 5, 2014, is a unique idol group with a mission to “unify” Japan’s 47 prefectures by showcasing their distinct cultures through music, dance, and performances. Each member serves as an “Evangelist” for a specific prefecture, blending traditional Japanese elements like sensu (fan) dancing with modern J-Pop and Western musical influences. The group’s motto, “The sun will soon rise on the world!” reflects their ambition to spread Japan’s cultural energy globally. Sasagawa joined BANZAI JAPAN as part of its third generation on December 6, 2015, initially as a member of the trainee unit ASHIGARU JAPAN. Her dedication and talent quickly earned her a promotion to full member status on February 7, 2016, marking the beginning of her ascent within the group.
Sasagawa’s entry into BANZAI JAPAN came at a time when the group was expanding its roster and refining its identity. The group had already released early singles like Banzai Japan! (2015) and was building a reputation for its high-energy performances and intricate choreography. Sasagawa’s addition brought a fresh dose of enthusiasm and a strong regional identity, as she proudly represented Niigata. Her promotion from ASHIGARU JAPAN, a training ground for aspiring idols, underscored her potential and commitment to the group’s vision.
Role and Contributions in BANZAI JAPAN
As a member of BANZAI JAPAN, Sasagawa contributes to the group’s multifaceted activities, which include music releases, live performances, cultural promotion, and international appearances. The group’s discography, which includes major singles like Juunin Toiro / Kingyo no Uta (2019), Jumpin’! Nappu! Japan! (2020), and Nippon Isshuu Ai no Gohan Tabi / Banzai! Banzai! / Curtain Call (2024), showcases their blend of traditional and contemporary sounds. Sasagawa’s vocals and dance skills are integral to these releases, which often feature complex choreography involving sensu fans, a nod to Japanese folklore.
One of Sasagawa’s standout contributions is her participation in the subunit Scanty♭, which allows her to explore different musical styles and performance dynamics within the BANZAI JAPAN umbrella. Her involvement in Scanty♭ highlights her versatility, as she adapts to varied genres while maintaining her signature energy. Additionally, Sasagawa’s performances in songs like Ukiyo Waka have resonated with fans, particularly for their interactive “furitsuke” (fan choreography) elements, which she has cited as a personal favorite for its ability to engage audiences.
Sasagawa’s role as Niigata’s Evangelist extends beyond music. She actively promotes her prefecture through social media, sharing photos of Niigata’s landscapes, festivals, and cultural landmarks. During a 2023 interview at Japan Expo in France, she emphasized the beauty of Niigata’s hanabi displays, inviting international fans to experience them firsthand. Her participation in local matsuri (traditional festivals) further amplifies her region’s cultural heritage, as she immerses herself in these events to convey their atmosphere to fans. This dedication aligns with BANZAI JAPAN’s broader goal of showcasing Japan’s regional diversity, making Sasagawa a vital ambassador for Niigata.
International Presence and Japan Expo
BANZAI JAPAN’s international outreach, particularly through events like Japan Expo in France, has elevated Sasagawa’s profile as a global idol. The group has been a regular presence at Japan Expo since 2018, using the platform to introduce Japanese culture to European audiences. Sasagawa has been a key participant in these events, performing in traditional-inspired costumes like red-and-white kimonos and engaging with fans through concerts, interviews, and fan dinners. In a 2023 Japan Expo interview, she shared how the group strengthens bonds through shared experiences like traveling and eating together, highlighting the camaraderie that fuels their performances.
Sasagawa’s positivity shines in these international settings, where she connects with fans through her infectious enthusiasm and cultural pride. Her comment about wanting to visit the Louvre Museum, despite past challenges with crowds, reflects her curiosity and openness to new experiences. These appearances have helped BANZAI JAPAN build a growing fanbase in France and beyond, with Sasagawa’s vibrant personality leaving a lasting impression.
Personal Characteristics and Achievements
Sasagawa’s nickname, “clear as snow,” reflects her pure and uplifting presence, while her abundance of “SA” syllables in her name (Sasa Sasagawa) is a playful characteristic she embraces. Her bio notes that these syllables make her name “hard to verbalize,” but she turns this quirk into a point of charm. Her positive mindset, described as an “indomitable spirit,” allows her to navigate challenges with optimism, even when faced with misunderstandings or setbacks. This resilience is a hallmark of her idol persona, endearing her to fans who admire her perseverance.
Sasagawa’s unique fashion sense, described as “solely her own,” sets her apart in the idol world. Her private outfits, often bold and original, reflect her confidence and individuality. This flair extends to her performances, where her short, iconic haircut and vibrant stage presence make her instantly recognizable. Her love for ninjas, inspired by Niigata’s historical ties to stealth warriors, adds a playful layer to her persona, as she often incorporates ninja-themed elements into her interactions with fans.
Beyond her idol activities, Sasagawa holds impressive credentials, including a 2nd-degree rank in Shorinji Kempo (a Japanese martial art) and a 6th-degree rank in Japanese calligraphy. These skills showcase her discipline and cultural depth, reinforcing her role as a multifaceted ambassador for Niigata. Her achievement as the top winner in the “KANGOL BEAUTY” ambassador model audition, announced on CHEERZ, further highlights her popularity and ability to connect with fans, as she credited their support for her victory.
Impact and Legacy
Sasa Sasagawa’s journey in BANZAI JAPAN is a testament to her dedication, cultural pride, and ability to inspire. As Niigata’s Evangelist, she has brought her region’s beauty and traditions to a global stage, from the rice fields of Echigo to the festival grounds of Japan Expo. Her contributions to the group’s music, performances, and international outreach have helped BANZAI JAPAN fulfill its mission of uniting Japan’s prefectures and sharing their charms with the world. With her boundless energy, unique style, and unwavering positivity, Sasagawa continues to shine as a beloved idol and a proud representative of Niigata, leaving an indelible mark on fans and the J-Pop landscape.

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About Latest Posts Follow Me MRPMWoodman Company Director/CEO at Depressed Media Ltd Paul (Poison Fish) Manjyu Woodman Follow Me Latest posts by MRPMWoodman (see all) Data Entry – 21.09.2025 Free【世界逆転宣言!Music Video】/ 世界逆転宣言! Sekai Gyakuten Sengen 2025 – 20.09.2025 Free Images cosplay cosplayer maou-chan maou 2025 – 09.09.2025 48 / 100 Powered by Rank Math SEO SEO Score MRPMWoodman Paul (Poison Fish) Manjyu Woodman

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Free【世界逆転宣言!Music Video】/ 世界逆転宣言! Sekai Gyakuten Sengen 2025

About Latest Posts Follow Me MRPMWoodman Company Director/CEO at Depressed Media Ltd Paul (Poison Fish) Manjyu Woodman Follow Me Latest posts by MRPMWoodman (see all) Data Entry – 21.09.2025 Free【世界逆転宣言!Music Video】/ 世界逆転宣言! Sekai Gyakuten Sengen 2025 – 20.09.2025 Free Images cosplay cosplayer maou-chan maou 2025 – 09.09.2025 86 / 100 Powered by Rank Math SEO SEO Score Sekai Gyakuten Sengen! Members of Sekai Gyakuten Sengen! and their X accounts: https://youtu.be/f-D3bjSR1JM?si=GW8q6hMTExkr8oIELink to Video Youtube Link Maruse Koharu (丸瀬こはる) Low-tone voice, sound producer, water blue rep, anime fan, #ここちゃ可愛いぴえ. Group Official @sekai_gyakuten For announcements and audition updates. Rai no Sui (雷乃すい) Yellow/orange rep, dynamic performer, featured in live shots and merch events. Fukuda Kana (福田かな) Purple rep, “gang” style, music school grad, captain of #セカセンラーメン部. Narumi Rikka (成宮立夏) Boyish rock idol, Fukui native, part of #酒クズぴえん部. Midorigawa Fuyuki (緑川冬葵) Green rep, active in event photos and lives. Sekai Gyakuten Sengen!  (世界逆転宣言! literally “World Reversal Declaration!”) is a high-energy Japanese idol pop song released in September 2025. It serves as the debut single for the artist/group of the same name, produced under Cospanic Entertainment, a Tokyo-based company specializing in idol girl groups. Key Details: Artist: Sekai Gyakuten Sengen! (also stylized as 世界逆転宣言!) Release Date: September 14, 2025 Songwriters: Music & Lyrics: Koharu Maruse Arrangement: Takashi Okazaki (岡崎宙史) Tracklist: Sekai Gyakuten Sengen! (main track) Sekai Gyakuten Sengen! (Instrumental) Genre: J-Pop / Idol Pop With themes of empowerment, reversal of fortunes, and bold declarations—fitting the “gyakuten” (reversal) motif common in Japanese media. Official Music Video The MV premiered on YouTube on September 14, 2025, and has quickly gained traction for its vibrant visuals, dynamic choreography, and anthemic chorus. It’s described as a “milestone” in modern idol activism, blending catchy hooks with messages of world-changing defiance. Watch Here: YouTube MV Streaming Availability Available on major platforms including: Spotify Apple Music iTunes Store LINE MUSIC Amazon Music Unlimited Spotify: Search “Sekai Gyakuten Sengen” or “世界逆転宣言!” in the Spotify app or website (https://www.spotify.com). Apple Music: Search “Sekai Gyakuten Sengen” or “世界逆転宣言!” on Apple Music (https://music.apple.com). iTunes Store: Search “Sekai Gyakuten Sengen” or “世界逆転宣言!” in the iTunes Store (https://www.apple.com/itunes). LINE MUSIC: Search “世界逆転宣言!” on LINE MUSIC (https://music.line.me) or the LINE app (Japan-focused, may require regional access). Amazon Music Unlimited: Search “Sekai Gyakuten Sengen” or “世界逆転宣言!” on Amazon Music (https://music.amazon.com). This track has been highlighted in music blogs for its fresh take on the idol scene, drawing comparisons to groups like BANZAI JAPAN under the same label. If you’re into upbeat J-pop with a revolutionary vibe, it’s worth a spin—especially if you enjoy themes of “turning the world upside down” like in anime such as Gyakuten Sekai no Denchi Shoujo (Rumble Garanndoll). If this isn’t what you meant (e.g., a different media reference), let me know for more digging! Social Media & Live Schedule Group Official X: @sekai_gyakuten https://x.com/sekai_gyakuten For announcements and audition updates. Maruse Koharu (丸瀬こはる): @coco_kitoai https://x.com/coco_kitoai Low-tone voice, sound producer, water blue rep, anime fan, #ここちゃ可愛いぴえ. Rai no Sui (雷乃すい): @sui_sekasen https://x.com/sui_sekasen Yellow/orange rep, dynamic performer, featured in live shots and merch events. Midorigawa Fuyuki (緑川冬葵): @fuyuki_sekasen https://x.com/fuyuki_sekasen Green rep, active in event photos and lives. Narumi Rikka (成宮立夏): @rikka_sekasen https://x.com/rikka_sekasen Boyish rock idol, Fukui native, part of #酒クズぴえん部. Fukuda Kana (福田かな): @kana_sekasen https://x.com/kana_sekasen Purple rep, “gang” style, music school grad, captain of #セカセンラーメン部. MRPMWoodman Paul (Poison Fish) Manjyu Woodman