Shonentai

 was a three-member Japanese idol group under the talent agency Johnny & Associates. They debuted on December 12, 1985. The group lead an annual musical "Playzone" from 1986 to 2008 for about 957 performances with a total attendance of over 1.38 million people over the course of 22 years.
On 20 September 2020 was announced the withdrawal of Nishikiori and Uekusa from the group on 31st December 2020 through the official website of the Johnny's Ent.