Power and a Harem from One Act

When I woke up, I was born into this world as the second son of a duke in another world. This is what they call a reincarnation into another world, with memories of my past life. I can't remember my name, but in my past life I gave my all as an otaku, but my unhealthy lifestyle took its toll and I died relatively early. Well, I'd be lying if I said I had no regrets, but I lived life the way I wanted to, so I have no regrets. I was born into the duke family of a certain kingdom in another world. Apart from my parents and my worthless brothers who were obsessed with power and lineage, I was born with a talented body, skilled in both the arts and martial arts, and was also blessed with an awakening ability that was my trump card. This is the story of how I live my life the way I want to, the way I want to. If an otaku were reincarnated into another world, they would do all sorts of things