We conducted a field survey to collect leguminous genetic resources and investigate their distribution in Tokushima and Kochi Prefectures, in the Shikoku region of Japan, from October 22 to 26, 2018. In this survey, we focused on collecting wild adzuki beans because the number of wild adzuki accessions collected from both prefectures was considerably less than that for wild soybean in the past surveys. In all, 53 accessions were collected, including 23 wild adzuki bean (Japanese name, Yabutsuru-azuki) accessions, one intermediate-type adzuki bean (Japanese name, Zasshu-azuki), one cultivated adzuki bean (Japanese name, Azuki) accession, 25 wild soybean (Japanese name, Tsuru-mame) accessions, and three cowpea (Japanese name, Sasage) accessions. All collected seeds are conserved at the National Agriculture and Food Research Organization (NARO) Genebank of Japan. We plan to multiply the seeds of the collected accessions and evaluate their growth traits at our experimental field in Tsukuba in 2019. The multiplied seeds will become available upon request for research, breeding, and educational purposes.