In addition, to investigate coastal defense measures to be taken by the bakufu, he had Chudayu TODA and Toko FUJITA, both confidants of Nariakira, participated in Kaiganbogyo-goyogakari as well and appointed Tatewaki AJIMA, also at the Mito domain and a younger brother of Chudayu TODA, to the secretary of Kaiganbogyo-goyogakari.
その他、水戸藩からは斉昭の腹心である戸田忠太夫・藤田東湖が同じく幕府の海岸防禦御用掛として迎え、戸田忠太夫の実弟で水戸藩の安島帯刀を海防参与秘書掛に任じて、幕府の海防政策のあり方を検討させた。