Area sayap kanan bungker ujung barat
Semasa Perang Tiongkok-Jepang Pertama, tentara Jepang menggunakan ruang sayap kanan untuk menyimpan torpedo dan artileri, namun seusai perang ruangan ini dikosongkan.
Kemudian pembangunan pondasi untuk No.2 Sea Fort dilanjutkan, dan di ujung barat ditempatkan meriam 15 cm. Batu bata yang ada di Benteng Laut No.2 memiliki ukiran seperti bunga sakura dan sejumlah motif lainnya.
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