This drama relates the narrative of a youngster who is badly injured as a result of a school violence incident, and his family, who pursues the truth and battles for justice in his honor. Kang In Ha (Choo Ja Hyun) and Park Moo Jin (Park Hee Soon) are a married couple. Park Moo Jin is a high school teacher, while Kang In Ha owns a bakery. They have a good time with their children. Their tranquil days quickly transform into a horrific ordeal. Their kid, a third-grade middle school student, has been gravely hurt as a result of school violence. Park Moo Jin and Kang In Ha attempt to uncover the truth. Oh Jin Pyo (Oh Man Suk) and Seo Eun Joo (Jo Yeo Jung) are a married couple in the meantime. They both come from prosperous backgrounds. Oh Jin-Pyo is the chairman of a family-inherited private school foundation. They have never failed or been in need of anything. They have a troublesome son. The parents try to cover up their son's wrongdoing.