The Digital Wishing Tree is an interactive art installation that invites participants to share their hopes and aspirations for a future shaped by AI companion robots. Created using Unreal Engine 5, a real-time 3D computer graphics game engine, the installation features a virtual wishing tree displayed on a monitor. Participants use a keyboard to compose digital wish cards, which are then attached to the tree, gradually transforming it into a collective archive of dreams, concerns, and expectations. By combining participatory interaction with immersive digital environments, the work encourages reflection on the evolving relationship between humans and artificial intelligence, while fostering a shared space for imagination, dialogue, and future-oriented thinking.