Karada wa Jidou, Nakami wa Ossan no Nariagari Boukenki

In a peculiar turn of events, a seasoned individual, Sagami Shirabe, finds himself reincarnated into the body of a young boy, endowed with an extraordinary ability. Unfortunately, his rebirth occurs within the confines of a destitute noble family, where a violent and unpredictable mother reigns supreme. Compounding his troubles, he is exiled from the territory at the tender age of 13, leaving him to navigate a precarious and unfamiliar world. With his remarkable abilities and the benefit of past knowledge, he embarks on a daring adventure to explore this new world and unravel the mysteries that surround him.