Killer: the King of Killers Wants Me to Be a Teacher?

"A business owner wants you by name." "You want me by name? I'm not cheap!" "Hehe, of course. Who doesn't know that you are the flagship of the organization, so it's not cheap." "Tell me, how much does the employer pay?" "Uh... One... Piece..." ? ? ? Hey, gold medal killer, king of killers! It's very expensive, isn't it? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.