Yuuki Natsume -

Yūki Natsume is the main protagonist of the series. He's a young boy who can see and interact with yokai (supernatural creatures from Japanese folklore). Yūki's life changes when he inherits a book from his grandfather, Reiko Natsume, which contains the names of yokai that have been trapped by his grandmother. As Yūki tries to navigate his relationships with the yokai, he learns more about his family's past and the responsibilities that come with being a Natsume.

You're referring to Yūki Natsume, a character from the anime and manga series "Natsume's Book of Friends" (also known as "Natsume's Book of Demons" or "Natsume no Narikobito" in Japanese).