Iwahashi Genki (岩橋玄樹)
Nickname : Genki (玄樹), Iwashi (いわし), Genki-kun (玄樹くん), Gen-chan (玄ちゃん), Iwachi (いわち), Iwahashi (岩橋), Iwahashi-kun (岩橋くん), Gen-kun (玄くん)、Iwagen (イワゲン)
Birthplace : Tokyo, Japan
Birthdate : December 17, 1996
Bloodtype : O
Height : 165 cm
Weight : 50 kg
Feet Size : 26.5 cm
B : 79 cm
W : 73 cm
H : 85 cm
Joined : October 30, 2010
Iwahashi Genki is a member of King & Prince.
- Favorite movie: Armageddon
- Favorite animal: dog, monkey
- Favorite sport: basseball
- Favorite food: tomato, banana
- Disliked food: plum
- Favorite color: red, dark blue
- Favorite season: winter
- Favorite number: two
- Favorite subject: English
- Disliked subject: mathematic
- Favorite country: USA
- Favorite book: vocabulary notebook
- Family: mother, father, sister (4 year younger)
- Hobbies: listening rock music at midnight, watch DVD
- Ability: baseball, picture editing
- Collection: glove
- Charm points: dimple, dropping eyes
- High School: Hinode High School
- College: Asia University (Economy Department)
- Type of girl: the girl with short hair and likes sport
- Eyesight: 1,5 for both eyes
- Eyelashes: 0,8 cm
- Shoulders: 41,5 cm
- Arm: 62,5 cm
- Palm size:5cm
- Inseam: 72cm
- Pair: Jinguji Yuta
- Catchphrase: “Minna genki~? (Genki!) Iwahashi~? (Genki)” (みんな元気~? (元気!) 岩橋~? (玄樹!))
- Admired senpai: Akanishi Jin, Ikuta Toma, Totsuka Shota
- Close senpai: Nakajima Kento
- Close Jr: Nakamura Reia, Miyachika Kaito, Kishi Yuta, Jinguji Yuta, Haniuda Amu, Fukazawa Tatsuya, Hirano Sho
- Same period with Sato Shori, Jinguji Yuta, Kuramoto Kaoru, Matsukura Kaito, Takahashi Rin
- His first love is at first grader.
- Sleeps five hours.
- Wants to go to NASA before entered Johnny’s.
- Promise to grandfather to entering university.
- Always carry stomachache medicine because of his nervous effect.
- His father is a doctor for professional baseball team.
- Playing baseball since 4 years old.
- When he was at junior high school, he ever bullied by his friend, and didn’t want to go school.
- Because his last name “shi”, he, Takahashi Fu and Kishi Yuta called C3.
- His childhood dream was become a police because he liked the police’s white car.
- His mother often recorded The Shonen Club. So, he can checking his dance.
- His best pitch is 120 km/hr.
- His dream is become a professional baseball player. But his elbow was injury, so, he can’t become a baseball player. Then he decided to joining Johnny’s.
- Is a cry baby.
- Able to doing back flip after rehearsal during performance battle in Gamushara Sexy Natsu Matsuri!!
- Suspends his activities due to panic disoreder since November 1, 2018. Because of this, he can’t perform in 69th Kohaku Uta Gassen.
- Nematsu Young Touzai Utagassen! Touzai Jr Senbatsu Daishugo 2010! ~A.B.C-Z + Johnny’s Jr Senbatsu vs Nakayama Yuma + Kansai Johnny’s Jr Senbatsu~
- Hey! Say! JUMP Arigatou ~Sekai no Doko ni Itemo ~ WINTER CONCERT 2010~2011
- Hey! Say! JUMP & Yuuki 100% Zenkoku Tour
- Hey! Say! JUMP SUMMARY 2011
- Kis-My-Ft2 Debut Tour 2011 Everybody Go at Yokohama Arena 2011.7.31
- Sexy Zone Arena Concert 2012
- Johnnys’ Dome Theatre ~SUMMARY 2012~ Sexy Zone
- Johnnys’ Dome Theatre ~SUMMARY 2012~ A.B.C-Z
- Fresh Jr in Yokohama Arena 
- JOHNNYS’ World no Kansashai ni TOKYO DOME
- Live House Johnny’s Ginza 2013
- Sexy Zone Japan Tour 2013
- Live House Johnny’s Ginza 2014
- Gamushara J’s Party!! Vol.1
- Gamushara Sexy Natsu Matsuri!!
- Gamushara J’s Party!! Vol. 6
- Gamushara J’s Party!! Vol. 8
- Johnny’s Ginza 2015
-  Kasuka na Kanojo
-  SHARK ~2nd Season~
-  Bukatsu, Suki Janakya Dame Desuka?
-  31 Ice Cream Baskin Robbin