Gouka! Goukai!? Phantom Thief! / Hello, Happy World! / ゴーカ!ごーかい!?ファントムシーフ! / ハロー、ハッピーワールド! / Gouka! Goukai!? Phantom Thief! / Hello, Happy World!

Hello, Happy World! is Kokoro Tsurumaki (CAST: Miku Ito), Kaoru Seta (CAST: Azusa Tadokoro), Hagumi Kitazawa (CAST: Yuuri Yoshida), Kanon Matsubara (CAST: Moe Toyota), Michelle (CAST: Tomoyo Kurosawa)

M-01
Composer: Hitoshi Fujima (Elements Garden)
Arranger: Hitoshi Fujima (Elements Garden)
Lyricist: Asuka Oda (Elements Garden)
Guitar: Jun Anazawa
Bass: Ryuji Momoyama
All Other Instruments & Programming: Hitoshi Fujima
Directed by Hitoshi Fujima
Production Management: Asami Suita (ARIA entertainment)

M-02
Composer: Hitoshi Fujimi (Elements Garden)
Arranger: Hitoshi Fujima (Elements Garden)
Lyricist: Asuka Oda (Elements Garden)
Guitar: Jun Anazawa
All Other Instruments & Programming: Hitoshi Fujima
Directed by Hitoshi Fujima
Production Management: Asami Suita (ARIA entertainment)

M-03
Composer: Ryota Suemasu (Elements Garden)
Arranger: Ryota Suemasu (Elements Garden)
Lyricist: Asuka Oda (Elements Garden)
Guitar: Kyoichi Miyazaki
Bass: Ryuji Momoyama
All Other Instruments & Programming: Ryota Suemasu
Directed by Ryota Suemasu
Production Management: Asami Suita (ARIA entertainment), Kurumi Sakamoto (ARIA entertainment)

Mixed by Eiichi Nishizawa
Recorded at ARIA Studio
Sound Produced by Elements Garden


Producer: Shuji Yoshimura (Bushiroad Music)
Director: Tae Nakamura (Bushiroad Music)
A&R: Yumiko Nakane (Bushiroad Music)

Promotion: Kyo Ito (Bushiroad Music), 今野江里子 (Bushiroad Music), Eri Handa (Bushiroad Music), Yuya Kasasaku (Bushiroad Music)
Production Management: Narumi Asakura (Bushiroad Music)

Mastering Engineer: Takeo Kira (Mastering Studio TEMAS)

Jacket Designer: Yoshiko Tokutake (5SPICE DESIGN)
Illustration: Craft Egg

Executive Producer: Takaaki Kidani (Bushiroad Music), Kazushi Miyakoda (Bushiroad Music)

Special Thanks: BanG Dream! Project, All BanG Dreamers