There are always some unjust cases and wrongful convictions in this world. Although the legal system is open and thorough, the truth will eventually be revealed to the world. But there are always some people who cannot stand the criminals escaping because they are related to them or have no choice but to know the truth, and they ignore it and find no way out, so the organization "Yi" is derived. Chen Yu has always been a leader in this organization, and together with his original partner Qi Yuan, he can handle almost all dangerous tasks. When Chen Yu was fifteen years old, he came to City A by chance and developed a strong interest in Lu Lai. In Lu Lai's freshman year of high school, Chen Yu asked Lu Lai to pick up his injured self and helped Lu Lai join "Yi". Since then, Lu Lai has been trained as Chen Yu's partner.
Purpose: Love and Peace