First press edition includes a B2-sized poster.

Track 01: TV Anime "Happiness!" Opening Theme
Vocals by Ayumi Murata
Lyrics & Composed by Chiyomaru Shikura
Arranged by Koji Ueno
Guitar: Koichi Katayama
Chorus: Tomomi Natori
Recording & Mixing Studio: Studio 5pb.
Recording & Mixing Engineer: Jiro Nakajima
Artist Management: Masakazu Morita (Cel World Entertainment)
A&R: Kotaro Muroi

Track 02: TV Anime "Happiness!" Ending Theme
Vocals by Yui Sakakibara
Lyrics & Composed by Chiyomaru Shikura
Arranged by Koji Ueno
Guitar: Koichi Katayama
Chorus: Tomomi Natori
Recording Studio: STUDIO em-POINT
Recording Engineer: Tomomitsu Seki (STUDIO em-POINT)
Assistant Engineer: 遠藤智憲 (STUDIO em-POINT)

Track 03: PS2 Game "Happiness! De:Lucks" Opening Theme
Vocals by Yui Sakakibara
Lyrics & Composed by Chiyomaru Shikura
Arranged by TARAWO
Guitar: Hironori Akiyama
Bass: Naoki Kasahara
Drum: TARAWO
Chorus: Urara Takai
Recording Studio: STUDIO em-POINT
Recording Engineer: Tomomitsu Seki (STUDIO em-POINT)
Assistant Engineer: 遠藤智憲 (STUDIO em-POINT)

Track 04: PS2 Game "Happiness! De:Lucks" Ending Theme
Vocals by Ayumi Murata
Lyrics & Composed by Miwacho Fujimura
Arranged by Kaoru Akizuki
Guitar: Kaoru Akizuki
Chorus: Tomomi Natori
Recording & Mixing Studio: Studio 5pb.
Recording & Mixing Engineer: Tomomitsu Seki (STUDIO em-POINT)
Artist Management: Masakazu Morita (Cel World Entertainment)
A&R: Kotaro Muroi

Track 05: From "Happiness! De:Lucks Character Ending Collection Vol.I"
Vocals by Haruhi Kamisaka (CV.Yui Sakakibara)
Lyrics by Eri Ishii
Composed by Tomoyuki Hamada
Arranged by Yasutaka Hatade
Guitar: Yasutaka Hatade (T's MUSIC)
Chorus: 榊夏美
Recording Studio: Studio 5pb.
Recording Engineer: Jiro Nakajima
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 06: From "Happiness! De:Lucks Character Ending Collection Vol.II"
Vocals by Anri Hiiragi (CV.Mia Naruse)
Lyrics by Eri Ishii
Composed by Tomoyuki Hamada
Arranged by Yasutaka Hatade
Guitar: Yasutaka Hatade (T's MUSIC)
Chorus: Chi-nano
Recording Studio: SOUND ARTS
Recording Engineer: Katsumi Sambongi (SOUND ARTS)
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 07: From "Happiness! De:Lucks Character Ending Collection Vol.III"
Vocals by Koyuki Takamine (CV.Yura Hinata)
Lyrics, Composed & Arranged by Yoichi Sakai
Guitar: Horieccho
Chorus: 榊夏美
Recording Studio: SOUND ARTS
Recording Engineer: Katsumi Sambongi (SOUND ARTS)
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 08: From "Happiness! De:Lucks Character Ending Collection Vol.IV"
Vocals by Sumomo Kohinata (CV.Mai Goto)
Lyrics & Composed by Akiko Tomita
Arranged by Satoshi Okubo
Guitar: 酒井隼人
Chorus: Chi-nano
Recording Studio: SOUND ARTS
Recording Engineer: Katsumi Sambongi (SOUND ARTS)
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 09: From "Happiness! De:Lucks Character Ending Collection Vol.V"
Vocals by Ibuki Shikimori (CV.Oma Ichimura)
Lyrics by Yoichi Sakai, Shinichiro Yamashita
Composed & Arranged by Yoichi Sakai
Guitar: Horieccho
Bass: 東倫久
Chorus: 榊夏美
Recording Studio: SOUND ARTS
Recording Engineer: Katsumi Sambongi (SOUND ARTS)
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 10: From "Happiness! De:Lucks Character Ending Collection Vol.VI"
Vocals by Saya Kamijou (CV.Shizuka Ito)
Lyrics by Eri Ishii
Composed by Tomoyuki Hamada
Arranged by Yoichi Sakai
Guitar: Horieccho
Chorus: 榊夏美
Recording Studio: Studio 5pb.
Recording Engineer: Jiro Nakajima
Mixing Studio: T's MUSIC
Mixing Engineer: Katsumi Suyama

Track 11: Jun Watarase Character Song
Vocals by Jun Watarase (CV.Michiru Yuimoto)
Lyrics by ASAKI
Composed by Eri Ishii
Arranged & Guitar by Shigenobu Okawa
Chorus: Chi-nano
Recording & Mixing Studio: Studio 5pb.
Recording & Mixing Engineer: Jiro Nakajima

Track 12: Jun Watarase's Seiyuu Comment Track
Performer: Jun Watarase (CV.Michiru Yuimoto)

Track 13
Vocals by Ayumi Murata
Lyrics & Composed by Chiyomaru Shikura
Arranged by TARAWO

Track 14
Vocals by Yui Sakakibara, Mia Naruse, Yura Hinata, Mai Goto, Oma Ichimura, Shizuka Ito
Lyrics & Composed by Miwacho Fujimura
Arranged by Yoichi Sakai
Guitar: Horieccho
Recording & Mixing Studio: Studio 5pb.
Recording & Mixing Engineer: Jiro Nakajima

Mastering Studio: Memory-Tech, Ann's Sound [Tr.01,04]
Mastering Engineer: Naomi Sassa (Memory-Tech), Yoshihiko Ando (Ann's Sound) [Tr.01,04]

Original Work: Windmill

Producer: Michiko Koyanagi
Director: Tomoyuki Hamada
Support Director: Sho Fujimaru
Sales Promoter: Katsunori Takahashi, Tsuyoshi Tonosaki
Organization Control: Yuki Nita
Design: 太田陸 (TOM'S)

Thanks:
  Ares, Marvelous Entertainment, Media Factory, Marvelous Interactive, Guyzware

Special Thanks:
  Cel World Entertainment, LOVE×TRAX, Tori Tori Office, Office CHK, Ken Production
  PRO·FIT, T's MUSIC, Artistland

Executive Producer: Chiyomaru Shikura