19 Colors Festival is an event initiated by several Nijisanji ID fans. The event will be held free of charge on December 23, 2023 at the Jakarta Design Center, Jakarta. One of the main activities of this event is the 19 Colors Creator Fest, which is a creator market event that gives visitors the opportunity to shop for various merchandise from tenants who are present at the event, including merchandise from their favorite virtual liver. In addition, this event will be liven up by several guest stars who will provide unforgettable moments to visitors during this event.