I'm sorry, I don't know who the author of 'the age of arrogance novel' is. There are so many novels out there, and without more information, it's difficult to determine the author.
I'm not sure specifically as I haven't read it. It could be about a period of time where characters display excessive pride or hubris. Maybe it's set in a historical context where a particular group or individual's arrogance has a great impact on the story's events.
Webtoon does have a few 18+ comics. However, their availability can vary depending on your region and the platform's content regulations. Some might be hidden behind age verification or specific access settings.
A sentence to describe arrogance:
I don't offend people and I don't let them go.
I'm born to be useful.
3. Don't bend over for five buckets of rice.
4. Facing death unflinchingly.
5. Be fearless and independent.
The synonymous words of arrogance were rampant, indulgent, arrogant, arrogant, unrestrained, presumptuous, wanton, unrestrained, crazy, unrestrained, debauchery, absurd, and rampant.