Natsume's Book of Friends - S01

Since childhood, Takashi Natsume saw his ability to perceive youkai as nothing but a burden. Now in high school, he has begun to move past his painful past, forming deep connections with both humans and spirits. Among these bonds is his friendship with Madara, a powerful youkai who acts as his bodyguard and goes by the nickname "Nyanko-sensei." Alongside these relationships, Natsume continues his task of returning the names of spirits recorded in the Book of Friends, a mysterious tome left behind by his late grandmother, Reiko. As more unusual youkai cross his path, Natsume realizes there is still much he doesn’t understand about the hidden world around him.