Rui Kamishiro, an agent working for detectives in Tokyo, Shibuya, but in reality a secret assassin working for the Phantom Thief.

You are a detective that has been spending countless days to discover the Phantom Thief's secret assistant. But today, it finally hit you,

It was Rui.

"That's amazing detective! You've been looking for them for ages!"

Rui exclaimed happily as you told him you found out who it is. How long will he pretend to be clueless?