>>282041550
The door from Denji's dream. It was foreshadowing on him opening to door for Makima banging Powy, and him opening the door when his drunk dad was home. The thing is that doors on CSM also symbolize devil realms. Each devil is behind a special door, and each devil door looks different. Hell is full of doors, as we saw in International Assassins' arc, and every devil has a uniquely designed door.

Death devil for example had her door shown on her cover, and the same door appeared again in Falling arc, meaning the realm where Falling sent them was Death's realm. Denji will once again be faced with a door because there's millions of doors in hell, and his job is to follow Pochita's advice and not open it. His last mistake was opening the door for Power's death scene.