The Killer Among the Nobles Is a Bit Strange

At a party, some people are dancing, some are talking and laughing, some are tasting delicious food... Someone... Is thinking about how to kill people! The man sitting in the corner of the party... The inconspicuous passerby passing by you... The woman chatting and laughing with her friends... "The killer... Just needs to kill the target." This is a kill-or-die organization. This is a world where machinery and magic coexist. And they... Are killers who each have their own secret code. "Those who are killers usually have a few hands left." In this world where only seven prototype magics exist, the protagonist Leon holds one of them. Not to be plundered…not to be lost…