This is why I have a problem with manhwas that transmigrate where the MC steals literary works (Any famous literature from the "future", i.e. poems written by Li Bai or something). The authors of these works spend a lot of time composing those pieces, and it's just so unfair to plagiarize it because they came from the future. Even more than that, they spent a long time honing their skills, and stealing every piece from them so they can't earn a single penny for selfish desire... really, that just tells me that the MC of those manhwa's can't come up with their own ideas so they steal others'.