Destined Villain's Life - Chapter 6: [] Live a healthy life

[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be.

When Yue Qiang dropped all 8 free distribution stat points into his Charm stat, his entire life changed.

- Description from Novelupdates

A tale of avenging a father’s murder harbored hidden circumstances. A young man rose, a story steeped in bloodshed.

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?