Bertille saw it!

When she was young, Bertheille fell in love with a boy she met in the library of the Admonte Duke's house. For his intelligence and smile! And then the incident that occurred at Starchus Academy—Graecia-sama, everyone's admiration, had her fiancé stolen by Karin, the illegitimate daughter of a baron... wait? Rather than stolen, she threw him away, right? It must be so. That's what Bertheille thinks. Even while loving her fiancé Altho, Bertheille doesn't want to reveal his talents, so she worries about whether she should let him continue serving the foolish prince! She worries! In the midst of all this, Bertheille witnessed the foolish prince and Graecia-sama together!!! ※From the perspective of Bertheille, the fiancée of Altho, the prince's aide in "That's Why I Lie at the End"※Story-wise, this takes place during the interval after the engagement is broken off and before departing to the empire※More comedic in tone※