He Kills but Never Spares: This Guard Is Righteous to the Extreme!

[Guard System + Decisive and Ruthless + A World in Chaos Overrun by Monsters + Incredibly Satisfying + Fast-Paced]

In this chaotic age, monsters run rampant, and human lives are as worthless as weeds.

Lin Chu awakens the Guard System. As long as he completes guard missions, he can obtain all kinds of rewards.

“Who says you have to protect someone to count as a guard? If I kill all the enemies, doesn’t that count too?”

[Slay the enemy blocking your way. Guard mission successful. Guard Points +1]

[Spend Guard Points to raise the Sword Art, Void Returning Sword Scripture, to the Perfection Realm!]

[Guard mission complete. Reward: Great Art of Devouring Monsters and Planting Demons!]

Thus, a murderous demon king named Guard rose to fame throughout the chaotic age. Among humans, immortals, monsters, and ghosts alike, one saying spread far and wide:

“As long as you can enlist the Demon King Guard, flattening the Celestial Court will be as easy as splitting bamboo!”

Many years later.

Lin Chu stood at the summit of the immortal and demonic realms. Looking back on the road he had traveled, he saw that one guard mission after another had already forged a path to peace through the chaotic age.

(The synopsis falls short. Read the story for details.)

This book is also known as Top Demon King Guard of the Immortal Realm, Just a Guard? I’ll Smash the Immortal Realm with One Backhand, and What Do You Mean, a Guard Fought His Way Through the Nine Heavens?