Cheongsoyowon

“I won’t lose anymore.”

One day, Jin I-Su loses his father, his only family, in a surprise attack by unknown assailants. However, as time passes, he discovers that his father was no ordinary man. Just as his life is threatened by another assailant attack, people claiming to be his father's former colleagues appear. Through them, Jin I-Su learns of the assailants' true identity: Cheongdo Corporation. Cheongdo's goal is to expand and redevelop corporate cities through illegal means, ultimately securing political power. Learning that his father and his father's former colleagues were secret agents working to protect the rights of ordinary people and the lives sacrificed by these organizations, I-Su joins them.

(Source: YLAB, translated)