Agent Twilight is Westalis's greatest spy of all time, he's very stealthy, intelligent, sharp, and strong. Agent Twilight doesn't get sick but apparently Loid Forger does.

Loid Forger = fake name for Operation Strix, in which he is aiming to have his fake kid Anya become an imperial scholar so he can get closer a politician to arrange peace.

After a long mission, Loid fainted at the doorstep and was dragged into bed by his fake wife Yor. He doesn't have a filter anymore. He could say anything.