未来のうてな [Mirai no Utena / Tower of the Future]

In this haunting 11-issue series from Hakusensha (1995–1999), artist and writer 日渡早紀 weaves a delicate sci-fi mystery set in a futuristic tower where a young girl's encounter with a mysterious boy unravels secrets of memory, identity, and time. The story's quiet, introspective tone and elegant artwork distinguish it as a thoughtful gem of 1990s shojo manga, exploring emotional depth within a compact, self-contained narrative. Its limited run and focused vision make it a cherished cult work for fans of the era.