When they perceived the fleeting glance Nan directed at them, they understood his meaning pretty quickly.
Since Hans was taking the responsibility of talking to him, he continued to address the most important concerns of the group, which was to find whether Nan still was as powerful,
"Someone as mythical as Senior should be a Grade-6 warrior already. May we humble you by asking you for directions now?"
Even though he might have phrased it in a way to cover up his true intentions, the purpose of this question was obvious to everyone.
He wanted to ascertain the power level of someone who should've been dead for centuries already.
Even though everyone clearly knew his purpose, they kept a reverent expression on their faces as if they were really looking forward to 'directions' from Nan.
Nan knew that it was hard to convince them of his strength merely through his words, also because of how 'playfully' he killed Emertius.
