NMB48 to release 28th single, commemorating Nagisa Shibuya's graduation from the group. This edition includes "Koi no Hetare / Team BII" and comes with a DVD with a music video for "Nagisa Saiko!" and live footage featuring four songs from "NMB48 Summer Fes. 2023 -Acchi Team Matsuri-." The contents in the CDs corresponding to the regular editions (A, B, C & theater edition) are different from each other. The contents in the DVDs corresponding to the regular editions (A, B, C) are also different from each other.