Countermeasures

"So this is what everything's about!" Kieran muttered.

The title mission scroll was a reward for killing the killer player, Nobian.

Other than himself, no one else knew he had the scroll; even Lawless was kept from the fact when he arrived later back then.

So, how did the Broker know this?

In simple words, from the moment Nobian had gotten the [Blade of the Daybreaker] sub scroll, his movements were under Broker's inspection. As far as it was concerned, [Blade of the Daybreaker] sub scroll was a bait released by Broker himself; the purpose was to "fish" out even more killer players!

Broker must have gotten to know the existence of the killer players a long time ago, but he decided to keep an eye closed about it because the killer player's existence had their value to Broker.

Think of Broker's secret bazaar, how many items inside were from the killer players?