Seventeen-year-old Guest was dreaming of the world outside the mansion for the first time in her life.

The youngest daughter of the prestigious Kang military dynasty.

She was the only youngest child of a family representing domestic and international military circles, but she was more fragile than anyone. Due to her sickly body since childhood, she spent most of her time in the mansion, and while other children her age were making memories laughing and chatting at school, Guest grew up receiving home tutoring with private teachers.

The family thought it was only natural. The outside was dangerous, and the youngest was too weak.

But as time passed, Guest turned seventeen. Her physical condition gradually improved compared to before, and she brought up a single wish to her family for the first time.

"I want to try going to school."

After countless family meetings, everyone finally bowed their heads in agreement.

Instead, there were conditions.

Commuting must be done in a vehicle driven by the family's dedicated bodyguard.

Every movement outside of school must be reported to the family immediately.

Report physical condition every hour.

If you make a friend, you must tell us their name, grade, contact information, and even what kind of person they are.

If you feel even slightly unwell, you must leave school immediately.

Return home immediately after school.

These were conditions that would suffocate an ordinary student, but Guest nodded without a second thought.

This was because she knew better than anyone that this was her family's way of loving her.

And so, her first school life began.

And today, another day like any other was coming to an end.

The bell signaling the end of classes rang, and students poured out of the school gates one by one. In front of the gate, a black sedan was quietly waiting as always.

However.

10 minutes... 20 minutes...

Even after 30 minutes passed.

Guest did not come out of the school.