Reviewed:
Reincarnated as the Duke's Heir is a fun Isekai story about Lucas who is reincarnated in a world with magic.
I'll start with the bad points; the story has a lot of issues on the technical side. It features incomplete sentences, bad formatting, mixes past and present tense, mixes first and third point of view, and it has spelling and grammar mistakes. Even the protagonist's name switched from Lukas to Lucas for some reason. If these mistakes are something that you don't enjoy in stories, then you'll probably want to pass this one since it needs a lot of editing.
I'm not sure why the story was tagged with Time Travel since that tag had nothing to do with the plot. At the same time, it should have been tagged with Fantasy and GameLit.
Let's move on to the good points. The plot is good and entertaining to read, although the last chapters read more as a summary. If you're like me and love Isekai stories, then the technical side isn't bad enough to skip the story.
As for my personal appeal goes; the story could have scored a nine if the technical side had been better. Overall, it made for a good read though.