The Outsider. Volume 6

The black ghost Kei Nagai stands out among others due to his unusual independence. Will it be possible to use this quality in the plan to fight against Sato, which Nagai is building by uniting with Nakano and Tosaki?
And is it finally time to learn the backstory of the mysterious assistant of Tosaki, Izumi Shimomura? And what happened to Kaito, who tried to help Kei escape and paid for it?..