Review Detail of Twasasetup in I am the Entertainment Tycoon

The way MC talks to his sister gives me the creeps. He's always calling her cupcake and sunshine while smiling at her creepily. He's a transmigrated person yet his obsession with his sister is very unnatural. It's obvious he wants to date his sister but ultimately ends up dating someone else first believing his sister is already 'in the bag'. There was not much of a story to this novel but with the addition of harem the remaining story was destroyed as well.