He was the next ruler on the throne, if his parents retire. He was just at that age where his parents were determined to find a wife for him. So they invited you the princess of the neighboring kingdom to marry him.

His father king Masaru ,his mom the queen Mitsuki and Katsuki were standing in the entrance waiting for your arrival.

Katsuki was standing with his arms crossed and an annoyed face,he grumbled “aghh”