Eun-seok has to deal with and balance her aversion to minor offenders with firm beliefs on justice and punishment as she tackles complex cases while discovering what being an adult truly means.

It was also confirmed that Hong Jong-chan will direct the series with Kim Hye-soo playing Sim Eun-seok, a newly appointed judge.

[27][28] In December 2020 casting of Kim Mu-yeol and Lee Sung-min as main lead was confirmed.

[31][32][33][34] Joel Keller of Decider reviewing the series wrote, "Juvenile Justice is about as close to an American-style procedural as Netflix or Korean TV gets.

"[35] Pierce Conran of the South China Morning Post gave 3 stars out of 5 and wrote, "A grounded actors showcase that explores juvenile delinquency in a tightly woven frame of jurisprudence which occasionally shifts into a very melodramatic gear.