Johnny's Junior

Johnny's Jr. (ジャニーズJr., Janīzu Jr.^?) is a part of Johnny & Associates that focuses only on boys who have not yet officially debuted either with a unit or as a solo act. The juniors are mostly younger than 30, with the exception of Sano Mizuki.

Past Members:

the combi from two kansai jr. Naniwa Oji & Kin kan

The group was first united for television series "Shiritsu Bakaleya Koukou" in 2012 and continued as an unofficial unit until finally given name in May 2015 during their show in Johnny's Ginza at Crea Theatre.

Mister King

Mister Prince

舞闘冠(Butoukan), 舞 = dance, 闘 = fight, 冠 = crown/ best.
special project produced by Hideaki Takizawa.
was announced as a group on 23 December 2007 in Shounen Club.

Former Member:

Jr.A resulted from the musical PLAYZONE.

KINg of KANsai. Mukai and Kaneuchi were previously in a Kansai Jr. group called Shadow WEST. Hirano is a Jr. from Nagoya.

From Kansai Jr.

In 2008 they had a corner at the Shounen Club Premium show called "MA Dancin' with Japan'08", where they did a dance challenge.

This group concentrates on dancing.
It consists of 2 members from MA and 3 members from M.A.D.
This group has a corner at the Shounen Club Premium show called "Meet The MA-Mix!", where they show off their dancing talent.
This corner has replaced "MA Dancin' with Japan'08".

The group was created for the show Waratte Iitomo!, specifically for its corner, Iitomo Seinentai.

Past members:

The members were previously in a group called Mis Snow Man, together with the members of noon boyz.

formed in 1999.

Somehow faded away some time after Ryo Nishikido released a single with Noriyuki Higashiyama as Secret Agent.

formed in 1999.
This group was formed as the Kansai version of Five. In 2002 also became part of Johnny's Jr. Group named Kanjani8.

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Wikipedia