Elated after the prince spoke to her at her first ball, Mail was then tormented by his fiancée, the Duke's daughter.

Several days after the ball, which had become a bitter memory,

Mail happened to witness a secret rendezvous between a man and a woman in the Marquis's territory.

That woman was none other than the prince's fiancée.

"Your fiancée is cheating on you."

From that day, a correspondence began between Mail, who presented the tip-off letter, and the Second Prince, consumed by suspicion.