A different world, a different dimension, a mischievous journey.
From a tennis boy to a revenge boy, the devil hidden in the secret is waiting for an opportunity, and a certain boy has the urge to kill someone.
There was no darkness, no despair, the warmth that had never been felt before, and the expectations of the seniors, and the cold heart of a certain boy gradually melted.
Echizen Ryoma and Ciel Phantomhive exchanged identities.
"Ancient style of fan fiction"
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Concept: Prince of Tennis Black Butler
