Hachinan tte, Sore wa Nai Deshou! (WN)

Ichinomiya Shingo, a young 25 years old, single, worker of firm company while thinking of tomorrow’s busy working day goes to sleep. However, the moment he woke up, it was inside a room unknown to him. He then learned that he took over the mind of a 6 years-old child, remembering a lot from the memories of the said boy: he was born as the youngest (8th son and 10th child) in a of poor noble family living in back country. Having no administrative skill, he can’t do anything to manage the vast land his family has. Fortunately, he is blessed with the very rare talent of magic. Unfortunately, while it could bring prosperity to his family, in his situation it only led to a disaster. Yes, this i...