Mukai Koji (向井康二)
Nickname : Koji (康二), Jiiko (じーこ)
Birthplace : Osaka, Japan
Birthdate : July 21, 1994
Bloodtype : A
Height : 174 cm
Weight : 57 kg
Feet Size : 27.5 cm
B : 85.5 cm
W : 74 cm
H : 93 cm
Joined : October 8, 2006
Mukai Koji is a member of Kansai Johnny’s Jr.
- Favorite song: KEEP ON (V6)
- Favorite place: supermarket’s roof
- Favorite food: his mother’s omelette rice
- Disliked food: natto
- Favorite vegetable: green peas
- Favorite subject: English
- Favorite overseas talent: Tom Cruise
- Hobby: camera
- Ability: taking a photograph, monomane
- Close Jr: Muro Masaya, Kaneuchi Toma
- Admired senpai: Domoto Tsuyoshi
- Same period with Mukai Tatsuro, Fujii Ryusei
- His older brother, Mukai Tatsuro, was a member of Kansai Johnny’s Jr..
- His nickname, Jiiko, is from Hirano Sho.
- His cat’s name is Zico.
- Before he was born, he was predicted as a girl
- Good in English and got highest score in test.
- Able to speak Thai.
- His mother is Thai and his father is Japanese.
- Belong to art club and dance club.
- Belonged to softball and tennis club when he was junior high school.
- Kin Kan
- Muay thai Mukai Precious
- Little Gangs
- Shadow WEST
- Takizawa Enbujou
-  DRAMATIC J
-  Daremo Shiranai J Gakuen
-  Ryofes! ~Saigo no Nana Fushigi~
-  Kansai Johnny’s Jr no Kyoto Uzumasa!
-  Ninjani Sanjo! Mirai e no Tatakai
- The Shonen Club
- Ahoyanen! Sukiyanen!
- Maido! Jani~