So a long time ago i read a novel where the MC had a system and it was pretty long (i think) and there was this one part where he met this really powerful famous woman (powerful like POWERFUL not politically he was reincarnated to i think ) and when he was meeting her there was an audiance,i dont know, and he was able to buy cigarettes from the system bla bla bla and during the meeting he was being a HUGE troll.
The Sister of the Fire Emperor? Acting like he was a Scholar? Reciting Poem that is literally out of their world? Then its Ultimate Scheming System