This unit contributes to the KS3/4 history curriculum by developing students' ability to evaluate competing historical interpretations using real-world digital sources. It addresses the national curriculum requirement for students to engage with diverse historical perspectives and non-British case studies, providing analytical distance that allows students to practise evaluating contested narratives before applying the same skills to more emotionally proximate British examples. The unit develops the second-order concepts of interpretation, significance, and evidence that are assessed at GCSE across all major exam boards (AQA, Edexcel, OCR). The three-lesson progression — from surface-level source comparison, through institutional analysis, to structural critique of how silence is produced — ensures students build increasingly sophisticated analytical skills. These transfer directly to exam contexts and to students' wider understanding of how knowledge about the past is produced, managed, and contested. No specialist knowledge of Japan is required to teach this material. Full teacher guidance, lesson plans, slides, worksheets, and source packs are provided.