Scapegoat Sister Vs Second Prince

The second prince has come of age. To welcome the advent of such an occasion, among other things, the search for a suitable bride began. My younger sister was expected to go to the Royal Palace as a candidate. But despite this, she eloped the day before her departure. I, the older sister left behind, look almost exactly like the spitting image of my sister – so much that we’re often mistaken for twins.…… One month, right? For one month only, let’s be a substitute for my sister, shall we?