Isekai Cheat Kaitakuki

Synopsis:

I was supposed to have died abruptly from my everyday indolence, leading the life of a NEET, but when I woke up, I was a baby. It appears that magic exists in the world where I was reincarnated. I started a new life with my gorgeous mother Kara, my big-breasted maid and nanny Ruina, and my stunning sister Amelia, who is not my biological relative. I was born the son of a lord in a far-off village. I have matured as a teenager and am content with my life in a new universe thanks to my advanced magical abilities and current knowledge.