Manga like Ouji no Himitsu

Ranked by AniList's community-voted "readers also liked" data and how often forum discussions mention a title alongside Ouji no Himitsu.

1. Land of the Lustrous 89 16 community votes
2. Ichikawa Haruko Sakuhinshuu 69 11 community votes

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Tsundoku reads the actual forum threads and your own AniList history before it recommends anything — every answer shows its sources.