In a vibrant anime-style illustration, Professor Petterson is shown teaching a l

In a vibrant anime-style illustration, Professor Petterson is shown teaching a lesson to his two students in a traditional library setting. He is dressed in his usual yellow dress shirt, paired with white pants, but without the bow tie. The scene takes place in a Catholic monastic library, characterized by its classic wooden bookshelves filled with old tomes and religious texts. Professor Petterson stands at the front of the room, engaging the two students with a warm and attentive expression. His short, curly black hair and prominent goatee are depicted with crisp detail, emphasizing his thoughtful demeanor. The students, both , are seated at a wooden table. The dark-haired student with spiky hair and the blonde student with green eyes are focused on their books, wearing their regular dark blue school uniforms with yellow trim. The library's atmosphere is serene and scholarly, with large windows allowing soft light to filter through, casting a gentle glow on the wooden furniture and books. The overall setting is rich in detail, capturing the essence of a traditional monastic library with a calm, educational ambiance.