Dosukoi! Kenkyo ni Daitan / Ramen Daisuki Koizumi-san no Uta / Nen ni wa Nen (Nen'iri Ver.)

'''Dosukoi! Kenkyo ni Daitan / Ramen Daisuki Koizumi-san no Uta / Nen ni wa Nen (Nen'iri Ver.)' (ドスコイ！ケンキョにダイタン / ラーメン大好き小泉さんの唄 / 念には念（念入りVer.）; Dosukoi! Humble but Daring / The Song of Ramen Loving Koizumi-san / Look Before You Leap (Thorough ver.)'') is Kobushi Factory's 1st major label single. It was released on September 2, 2015 in six editions: three regular and three limited editions.

"Ramen Daisuki Koizumi-san no Uta" is a cover of a Sharan Q song, and is the theme for the drama Ramen Daisuki Koizumi-san.

CD Tracklist

 * 1) Dosukoi! Kenkyo ni Daitan
 * 2) Ramen Daisuki Koizumi-san no Uta
 * 3) Nen ni wa Nen (Nen'iri Ver.)
 * 4) Dosukoi! Kenkyo ni Daitan (Instrumental)
 * 5) Ramen Daisuki Koizumi-san no Uta (Instrumental)
 * 6) Nen ni wa Nen (Nen'iri Ver.) (Instrumental)

Limited Edition A DVD

 * 1) Dosukoi! Kenkyo ni Daitan (Music Video)

Limited Edition B DVD

 * 1) Ramen Daisuki Koizumi-san no Uta (Music Video)

Limited Edition C DVD

 * 1) Nen ni wa Nen (Nen'iri Ver.) (Music Video)

Event V "Dosukoi! Kenkyo ni Daitan"

 * 1) Dosukoi! Kenkyo ni Daitan (Fujii Rio Solo Ver.)
 * 2) Dosukoi! Kenkyo ni Daitan (Hirose Ayaka Solo Ver.)
 * 3) Dosukoi! Kenkyo ni Daitan (Nomura Minami Solo Ver.)
 * 4) Dosukoi! Kenkyo ni Daitan (Ogawa Rena Solo Ver.)
 * 5) Dosukoi! Kenkyo ni Daitan (Hamaura Ayano Solo Ver.)
 * 6) Dosukoi! Kenkyo ni Daitan (Taguchi Natsumi Solo Ver.)
 * 7) Dosukoi! Kenkyo ni Daitan (Wada Sakurako Solo Ver.)
 * 8) Dosukoi! Kenkyo ni Daitan (Inoue Rei Solo Ver.)

Event V "Ramen Daisuki Koizumi-san no Uta"

 * 1) Ramen Daisuki Koizumi-san no Uta (Fujii Rio Solo Ver.)
 * 2) Ramen Daisuki Koizumi-san no Uta (Hirose Ayaka Solo Ver.)
 * 3) Ramen Daisuki Koizumi-san no Uta (Nomura Minami Solo Ver.)
 * 4) Ramen Daisuki Koizumi-san no Uta (Ogawa Rena Solo Ver.)
 * 5) Ramen Daisuki Koizumi-san no Uta (Hamaura Ayano Solo Ver.)
 * 6) Ramen Daisuki Koizumi-san no Uta (Taguchi Natsumi Solo Ver.)
 * 7) Ramen Daisuki Koizumi-san no Uta (Wada Sakurako Solo Ver.)
 * 8) Ramen Daisuki Koizumi-san no Uta (Inoue Rei Solo Ver.)

Event V "Nen ni wa Nen (Nen'iri Ver.)"

 * 1) Nen ni wa Nen (Nen'iri Ver.) (Fujii Rio Solo Ver.)
 * 2) Nen ni wa Nen (Nen'iri Ver.) (Hirose Ayaka Solo Ver.)
 * 3) Nen ni wa Nen (Nen'iri Ver.) (Nomura Minami Solo Ver.)
 * 4) Nen ni wa Nen (Nen'iri Ver.) (Ogawa Rena Solo Ver.)
 * 5) Nen ni wa Nen (Nen'iri Ver.) (Hamaura Ayano Solo Ver.)
 * 6) Nen ni wa Nen (Nen'iri Ver.) (Taguchi Natsumi Solo Ver.)
 * 7) Nen ni wa Nen (Nen'iri Ver.) (Wada Sakurako Solo Ver.)
 * 8) Nen ni wa Nen (Nen'iri Ver.) (Inoue Rei Solo Ver.)

Featured Members

 * Fujii Rio
 * Hirose Ayaka
 * Nomura Minami
 * Ogawa Rena
 * Hamaura Ayano
 * Taguchi Natsumi
 * Wada Sakurako
 * Inoue Rei

Single Information

 * Dosukoi! Kenkyo ni Daitan
 * Lyrics & Composition: Hoshibe Shou
 * Arrangement: Kikuya Tomoki
 * Dance Choreographer: YOSHIKO
 * Ramen Daisuki Koizumi-san no Uta
 * Lyrics: Tsunku
 * Composition: Sharan Q
 * Arrangement: DANCE☆MAN
 * Dance Choreographer: YOSHIKO
 * Nen ni wa Nen (Nen'iri Ver.)
 * Lyrics & Composition: Abesho
 * Arrangement: Suzuki Shunsuke
 * Dance Choreographer: YOSHIKO

TV Performances

 * [2015.07.23] The Girls Live (Ramen Daisuki Koizumi-san no Uta)
 * [2015.08.28] The Girls Live (Nen ni wa Nen (Nen'iri Ver.))
 * [2015.09.02] Oha Suta (Dosukoi! Kenkyo ni Daitan)
 * [2015.09.04] The Girls Live (Dosukoi! Kenkyo ni Daitan)
 * [2015.09.07] Musíc Japan (Ramen Daisuki Koizumi-san no Uta)
 * [2015.09.30] LIVE B♪ (Dosukoi! Kenkyo ni Daitan)

Concert Performances

 * Dosukoi! Kenkyo ni Daitan
 * Hello! Project 2015 SUMMER
 * TOKYO IDOL FESTIVAL 2015
 * Hello Pro Kenshuusei Happyoukai 2015 ~9gatsu no Nama Tamago Show!~
 * Hello! Project New Fes! II
 * Kobushi Factory Live Tour 2015 ~ The First Ring! ~
 * Ramen Daisuki Koizumi-san no Uta
 * Hello! Project 2015 SUMMER
 * TOKYO IDOL FESTIVAL 2015
 * Hello Pro Kenshuusei Happyoukai 2015 ~9gatsu no Nama Tamago Show!~
 * Hello! Project New Fes! II
 * Kobushi Factory Live Tour 2015 ~ The First Ring! ~
 * Nen ni wa Nen (Nen'iri Ver.)
 * Hello Pro Kenshuusei Happyoukai 2015 ~9gatsu no Nama Tamago Show!~
 * Hello! Project New Fes! II
 * Kobushi Factory Live Tour 2015 ~ The First Ring! ~

Oricon Chart

 * Daily & Weekly Rankings


 * Monthly Ranking

!Ref
 * 2015
 * September
 * 10
 * 40,540
 * }
 * }
 * }

Total reported sales: 44,122*

Other Chart Rankings
!Ref
 * Austria
 * iTunes Top J-POP Albums
 * align="center"|1
 * align="center"|
 * 🇨🇦
 * iTunes Top J-POP Albums
 * align="center"|45
 * align="center"|
 * Hong Kong
 * iTunes Top J-POP Albums
 * align="center"|56
 * align="center"|
 * rowspan="7"|🇯🇵
 * Billboard Japan Hot 100
 * align="center"|17
 * align="center"|
 * Billboard Japan Top Singles Sales
 * align="center"|5
 * align="center"|
 * iTunes Top Album
 * align="center"|52
 * align="center"|
 * iTunes Top J-POP Albums
 * align="center"|16
 * align="center"|
 * Music Station
 * align="center"|4
 * align="center"|
 * TBS[CDTV] Single Ranking
 * align="center"|3
 * align="center"|
 * Tokyo FM Countdown Japan
 * align="center"|18
 * align="center"|
 * 🇬🇧
 * iTunes Top J-POP Albums
 * align="center"|20
 * align="center"|
 * rowspan="2"|🇺🇸
 * iTunes Top J-POP Albums
 * align="center"|1
 * align="center"|
 * iTunes New Music Releases
 * align="center"|15
 * align="center"|
 * 🇬🇧
 * iTunes Top J-POP Albums
 * align="center"|20
 * align="center"|
 * rowspan="2"|🇺🇸
 * iTunes Top J-POP Albums
 * align="center"|1
 * align="center"|
 * iTunes New Music Releases
 * align="center"|15
 * align="center"|
 * align="center"|15
 * align="center"|

Trivia

 * The single was announced on June 14th, 2015 during Nama Tamago show.
 * This is Kobushi Factory's first triple-A side single.
 * Kobushi Factory has the third highest major-debut sales count of all the current Hello! Project groups, with 43,277 copies sold, being surpassed only by Morning Musume and Country Girls.