Wise Man's Grandchild - S01

In the kingdom of Earlshide, Merlin Wolford was once celebrated as a national hero, praised for both his strength and his accomplishments. He preferred a quiet life, though, so he withdrew deep into the countryside woods, spending his time raising an orphan he had rescued. That orphan is Shin, an ordinary salaryman in modern Japan who was reincarnated into Merlin's world while keeping his memories of his past life. Over the years, Shin shows unmatched talent in both magic and martial arts, which amazes Merlin again and again. On his 15th birthday, it becomes clear that Shin only developed his combat skills and nothing else, leaving him socially awkward, lacking common sense, and with only a middling sense of responsibility. So Shin enrolls in the kingdom's Magic Academy to refine his abilities and grow up alongside other teenagers. A normal life is out of the question, however, since he becomes a local celebrity almost the moment he arrives. As Shin Wolford adjusts to high school life in the capital, he makes new friends, learns about the world, and fights off the various forces of evil threatening him and his city.