Red Shirt is a gripping action manhwa that follows Cha Si-Hyuk, the legendary assassin of a feared killer organization. After years of living by the blade, he dreams of leaving his violent past behind when he meets the woman he loves and chooses a peaceful life.

But escaping the underworld comes at a devastating cost. Refusing to let one of its greatest assassins walk away, the organization destroys everything Si-Hyuk holds dear. Stripped of the future he fought to build, he has only one path left—to reclaim his sword and seek vengeance against those responsible.

As his relentless pursuit of justice leads him into a deadly conflict with the powerful Nevil Gang, Si-Hyuk must face elite killers, ruthless syndicates, and dangerous conspiracies that threaten to consume him. Every battle brings him closer to the truth, but each victory comes with an even greater sacrifice.

Combining breathtaking sword fights, intense action, emotional drama, and a revenge-driven storyline, Red Shirt delivers a thrilling journey through the criminal underworld. With fast-paced storytelling, memorable characters, and high-stakes confrontations, it is a must-read for fans of action, crime, and revenge manhwa.