M01
Lyrics, Composition: Masami Okui
Arrangement: Kenichi Sudo
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M02
Lyrics, Composition: Masami Okui
Arrangement: Hideyuki Daichi Suzuki
Guitar: MACARONI☆, IMAJO
Bass: TABOKUN
Keyboard: Jun Imai
Drums: Yuu "masshoi" Yamauchi
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M03
Lyrics, Composition: Masami Okui
Arrangement: Hideyuki Daichi Suzuki
All Instruments: Hideyuki Daichi Suzuki
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M04
Lyrics: Masami Okui
Composition, Arrangement: Masato Nakayama
Guitar: Keiichi Nabeshima
Bass: Ryosuke Nikamoto
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M05 - MMORPG Game "HUNTER HERO" Theme Song
Lyrics, Composition: Queen Mesa
Arrangement: MACARONI☆
All Instruments: MACARONI☆
Chorus: Masami Okui
Mix Engineer: Jazzy Man
Sound Producer: Sumimasa Morita
ⒸFIREWORKS / MEGAMI Project

M06
Lyrics: Masami Okui
Composition: Tomoyuki Nakazawa
Arrangement: Tomoyuki Nakazawa, eba (F.M.F)
A.Guitar: Kazuya Takase
Guitar: eba (F.M.F)
Bass: Koya "Cherry" Nakahira
Chorus: Masami Okui
Mix Engineer: Tomoyuki Nakazawa

M07
Lyrics: Masami Okui
Composition: Yoshihito Onda
Arrangement: Yoshihito Onda, Takeshi Toriumi

M08 - TV Anime "SHIROBAKO" 2nd Opening Theme
Lyrics: Masami Okui
Composition: KAYOKO
Arrangement: Naoki "naotyu-" Chiba
Guitar: Takafumi "CO-K" Koukei
Bass: Teppei Kawasaki
Drums: Yoshihiro Kawamura
Chorus: Masami Okui
Sound Producer: Yosuke Hasegawa (ultraCeep Inc.)
Director: Naoki "naotyu-" Chiba
Artist Coordinate: Sumimasa Morita (FIREWORKS)
Mix Engineer: Toshihiro Watanabe (prime sound studio form)
Licensed by Warner Entertainment Japan Inc.

M09 - PC Game "Grisaia no Rakuen -LE EDEN DE LA GRISAIA-" Opening Theme
Lyrics: Masami Okui
Composition, Arrangement: Hitoshi Fujima (Elements Garden)
Violin: Daisuke Kadowaki
Chorus: Masami Okui
All Other Instruments & Programming: Hitoshi Fujima
Mix Engineer: Hisayoshi Kondoh
Sound Produce: Elements Garden
Production Management: Asami Suita (ARIA entertainment)

M10
Lyrics: Masami Okui
Composition, Arrangement: Kazuya Takase
Guitar: Takeshi Ozaki
Chorus: Masami Okui
Mix Engineer: Kazuya Takase

M11 - Live Action Drama "GARO: Yami wo Terasu Mono" 2nd Ending Theme Rearranged
Lyrics, Composition: Masami Okui
Arrangement: Shiho Terada
Guitar: Hiroshi Iimuro
Strings: Koichiro Muroya Quartet
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M12 - PS3 Game "Muv-Luv photonflowers*" & "Muv-Luv photonmelodies♮" Opening Theme
Lyrics, Composition: Masami Okui
Arrangement: Hideyuki Daichi Suzuki
All Instruments: Hideyuki Daichi Suzuki
Chorus: Masami Okui
Ⓒ2014 ixtl

M13
Lyrics, Composition: Masami Okui
Arrangement: Kenichi Sudo
Keyboard: Kenichi Sudo
Guitar: Daisuke Kato
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)

M14 - TV Anime "Kyoukaisen Jou no Horizon II" Ending Theme -Side SunRise-
Lyrics, Composition: Masami Okui
Arrangement: Takago Azuma
Guitar: Takago Azuma
Bass: Kazuhiro Sunaga
Drums: Ken Higeshiro
Piano: Kenichi Sudo
Chorus: Masami Okui
Mix Engineer: Hironobu Asano (Redefine)