Kyuutei Shokikan Litt no Yuuga na Seikatsu (Novel)

Litt is a first-class clerk of the imperial court who is permitted to write on behalf of the royal family. Even while being pestered by the young chamberlain Touri, he had begun writing invitations to an evening party held by the royal family... But just then, he is summoned by the first prince Raul, and commanded to secretly investigate the fiancee of the second prince, Tagi. It seems that the number of villainesses have increasing all throughout the world, and his fiancee is the head of all of them. So Litt sets out with Touri to investigate, but when Jin - his friend and vice-leader of the Chivalric Order of the Imperial Guards - gives him some intel about a love triangle surrounding Tagi, the mysterious incident turns the evening party into a huge uproar?!