Lady Mermaid / Eiya-sa! Brother / Kaigan Seisou Danshi

Lady Mermaid / Eiya-sa! Brother / Kaigan Seisou Danshi (レディーマーメイド / エイヤサ!ブラザー / 海岸清掃男子) is the first indie single by Dia Lady, Mellowquad, and HI-FIN. Both the CD and DVD were pre-released on July 27, 2013 at the Hello! Project 2013 SUMMER COOL HELLO! ~Sorezoore!~ concert. The single and DVD were released on August 7, 2013 for the general public.
==Tracklist==
===CD===
#Lady Mermaid - Dia Lady
#Eiya-sa! Brother - Mellowquad
#Kaigan Seisou Danshi - HI-FIN
#Lady Mermaid (Instrumental)
#Eiya-sa! Brother (Instrumental)
#Kaigan Seisou Danshi (Instrumental)
===DVD===
#Lady Mermaid (MV) - Dia Lady
#Eiya-sa! Brother (MV) - Mellowquad
#Kaigan Seisou Danshi (MV) - HI-FIN
#Lady Mermaid (Karaoke Ver.) - Dia Lady
#Eiya-sa! Brother (Karaoke Ver.) - Mellowquad
#Kaigan Seisou Danshi (Karaoke Ver.) - HI-FIN
#Lady Mermaid (Feat. Saxophone Ver.) - Dia Lady
#Eiya-sa! Brother (Yatai LIP Ver.) - Mellowquad
#Kaigan Seisou Danshi (Another Ver.) - HI-FIN
#Lady Mermaid (Making of) - Dia Lady
#Eiya-sa! Brother (Making of) - Mellowquad
#Kaigan Seisou Danshi (Making of) - HI-FIN
==Featured Members==
*Dia Lady
**Sugaya Risako
**Suzuki Airi
*Mellowquad
**Yajima Maimi
**Tokunaga Chinami
**Natsuyaki Miyabi
**Okai Chisato
*HI-FIN
**Hagiwara Mai
**Ikuta Erina
**Fukuda Kanon
**Ishida Ayumi
**Nakajima Saki
==Single Information==
;Lady Mermaid
*Lyrics: Tsunoda Takanori
*Composition: 
*Arrangement, Programming & Guitar: Kinoshita Yoshiyuki
*Saxophone: Saeka
*Chorus: Takui Nakajima
;Eiya-sa! Brother
*Lyrics: Mori Chiyoko
*Composition: Taki Momiji, Kusonoki Emyli
*Arrangement & All Instruments: Buzz Coen
*Chorus: Ayako Uto
*Kobushi "haaah~": Eric
*Voice: Eiyasa Bros. & Kids
;Kaigan Seisou Danshi
*Lyrics: Mori Chiyoko
*Composition, Arrangement & All Instruments: Kato Yusuke
*Music Video: Nakazumi Soichi
==Performances==
===Concert Performances===
;Lady Mermaid
*Hello! Project 2013 SUMMER COOL HELLO! ~Sorezoore!~
*Kobushi Factory Live Tour 2018 ~SHINE! Kobushi Tamashii!~ - Hirose Ayaka, Wada Sakurako
*Suzuki Airi LIVE PARTY No Live, No Life?? - Suzuki Airi (part of a medley) 
;Eiya-sa! Brother
*Hello! Project 2013 SUMMER COOL HELLO! ~Sorezoore!~
;Kaigan Seisou Danshi
*Hello! Project 2013 SUMMER COOL HELLO! ~Sorezoore!~
===Event Performances===
;Lady Mermaid
*[2016.04.12] ℃-ute Suzuki Airi Birthday Event 2016 - Suzuki Airi
*[2023.10.16] ANGERME Ise Layla・Tamenaga Shion FC Event 2023 ~Tanshio!~ - Ise Layla, Tamenaga Shion
*[2023.10.18] Tsubaki Factory Fukuda Marine Birthday Event 2023 - Fukuda Marine, Kishimoto Yumeno
;Kaigan Seisou Danshi
*[2022.07.11] Morning Musume '22 Ikuta Erina Birthday Event - Ikuta Erina
==Oricon Chart Positions==
;Single
Total Reported Sales: 1,636
;DVD
Total Reported Sales: 874
;Indie Single Ranking
|- 
|August 19, 2013
|5
|- 
|August 26, 2013
|11
|- 
|September 2, 2013
|19
|}
==Trivia==
*This is first release by SATOUMI movement.
*It was announced at Ikuta Erina's birthday event.
*It was released on the same day as Kikkawa You's Best of YOU! album.
*"Lady Mermaid" was covered by on his self-cover album .
==Videos==
==External Links==
*Discography: S/mileage (archived), Hello! Project, UP-FRONT WORKS
*DVD Discography: S/mileage (archived), Hello! Project, UP-FRONT WORKS
*cdjapan: CD, DVD
es:Lady Mermaid / Eiya-sa! Brother / Kaigan Seisou Danshi
Category:2013 Singles
Category:Dia Lady
Category:HI-FIN
Category:Mellowquad
Category:2 Members Line-Up
Category:4 Members Line-Up
Category:5 Members Line-Up
Category:9th Generation Morning Musume Singles In
Category:10th Generation Morning Musume Singles In
Category:1st Generation S/mileage Singles In
Category:SATOUMI Movement Releases
Category:Debut Single
Category:Indie Singles
Category:Triple A-Side Single
Category:English Name Single
Category:2013 DVDs
Category:2013 DVD Singles