Charles's gunmanship was ordinary; after firing one shot, he found no opportunity to fire a second Magic-Breaking Bombshell Bullet.
He had intended to wait patiently, but the diary in his embrace trembled slightly, and a thought entered his mind.
"You may issue the following task to NPC Lord Leo: Kill Harriet Alva."
"Reward him with more Labyrinth privileges."
"NPC Lord Leo may issue the following task: Rescue him from the Labyrinth."
"Reward: Teach the Bloodline Mantra."
"You may issue the following task to NPC Harriet Alva: Kill Lord Leo."
"Reward her with more Labyrinth privileges."
"NPC Harriet Alva may issue the following task: Assist her in killing Charles Meklen."
"Reward: Some insignificant friendship."
After pondering for a while, Charles began to understand, what exactly was the trait of a Labyrinth NPC?
As the owner of the Machu Picchu Labyrinth, he could issue tasks to NPCs, and anyone who entered the Labyrinth could accept tasks from NPCs and get rewards.