On the official Magazine Channel YouTube, operated by Weekly Shonen Magazine (Kodansha), a new promotional video (PV) for "Kaijin Fugeki" was released on September 3, 2025.
The song featured in the PV is a new original track "Kimi to Akashita Yoru" written specifically for "Kaijin Fugeki," performed by Towa Tokoyami and Botan Shishiro, both members of hololive. The PV also features three performers: Minori Taira (model), Ryu, and Yuta (dancers). Set in a nostalgic old Japanese house in the late summer, with gently swaying fans and scenery reminiscent of "Kaijin Fugeki," the performers exhibit emotional acting and dance.