The miraculous tag team of Kenshi Yonezu and Chainsaw Man strikes again! And for the first time ever, Kenshi Yonezu and Hikaru Utada join forces for an extraordinary collaboration. Serving as the theme song for the theatrical feature "Chainsaw Man - Reze Arc," Kenshi Yonezu delivers the newly written track "IRIS OUT." In addition, the ending theme for the same film, "JANE DOE" by Kenshi Yonezu and Hikaru Utada, is released together as a double A-side single. The "IRIS OUT Edition" comes in a special package featuring a pouch case containing a polaroid of "Reze" illustrated by Yonezu and an acrylic stand. Jacket Illustration by Kenshi Yonezu.Includes a serial number for the second advance ticket lottery for "Kenshi Yonezu 2026 TOUR / GHOST" [Application Period: Sep 22, 2025 12:00 - Sep 28, 2025 23:59] (system requirements unknown).