MTL - Mecha and Knife - Chapter 152 i don't believe you

In the Cyberpunk era, the Corporate Alliance dominated the world, with humans and witches alike serving as corporate cash cows, enslaved by advanced technology.Changes were thus unveiled, and Xu Yang, refusing to become a corporate slave, resolved to flee. He intended to rescue the adorable yet powerful witches from the clutches of the giant corporations, embarking on a path of innovation!

She was drugged by her ex-boyfriend and had her first night with a mysterious man.

The second prince has come of age. To celebrate the advent of such an occasion, the search for a suitable bride began. My younger sister was expected to go to the Royal Palace as a candidate. However, despite this, she eloped the day before her departure. I, the older sister she left behind, looked almost exactly like her – so much that we were often mistaken for twins…

One month, right? For just one month, shall I substitute in for my sister?