Observation Record of a Self-proclaimed Villainess’ Fiance

My fiance, Bertia is a bit different. On our first meeting, she proclaimed herself a villainess, a reincarnator, and that in order to become a splendid flower of evil, beautiful without question, she’s devoting herself each day.

I don’t get it. It’s because I don’t that she entertains me.
And so, I think I’ll observe her a little.

The story of a high spec prince who passed through the world in easy mode, observes his fiance, the self proclaimed villainess (a deplorable system 残念系?), snatching flags from the side and breaking them with a snap.