Pls help me find the bl manhwa

Hi, can someone please help me find this one bl manhwa? All I remember is this one scene where the ml (I think) is sitting at a table with some other guy and in front of them is a contract which needed to be signed by this one guy who probably would never sign it. That's what the guy sitting in front of the ml said. So, then the ml takes out something and it's a finger of the guy who needed to sign the contract. Ml puts the finger in alcohol then dips the finger into the ink and signs the contract with the finger. After that the Ml drinks the alcohol in which the finger was in. mb if there's any mistakes