The 'Harry Potter' series, known as 'Harii Pottā' in Japan, follows the magical adventures of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley. Set in the wizarding world, the series explores themes of friendship, bravery, and the fight against dark forces. Over seven books and eight films, it has captivated audiences worldwide, becoming a cultural phenomenon with its rich storytelling and imaginative world-building.