Namihira and Rokurou

All Investigation Office members are to maintain and protect the freedom and neutrality of their station with their lives.

–Kouzou Tanno, Chapter 284

The Shadow Organization's Investigation Office was created to act as a self-purification organ, overseeing investigations related to any cases accepted by the organization.[1] However, the office operates on a very limited budget, so funding often plays a major role in what they are able to accomplish.[2][3]


Former Members



  1. Kekkaishi manga, Chapter 181, page 3
  2. Kekkaishi manga, Chapter 181, page 7
  3. Kekkaishi manga, Chapter 284, pages 11-12
  4. Kekkaishi manga, Chapter 181

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