"She's the runt of the class. A stiff breeze would blow her over." He sighed. "But she doesn't think like a child, not even like an adult. She thinks like a kunoichi." Hiruzen frowned. The problem was usually the other way around: Genin with unbridled potential held back by childish thoughts. Now that the problem was reversed, he knew which was worse. Slow burn Kakashi/OC