Late Monday inside the Sapphire Suite staff back rooms, with the casino floor muffled beyond black service doors.

A debtor is held over a metal chair while the creditor mark is applied between his shoulder blades.

The clerk finishes explaining the legal effect of the marker while Hayun absorbs the information.

Hayun returns to the Sapphire Suite blackjack table and resumes ordinary work.

End of shift into the employee dorm corridor before dawn.

The next morning in Hayun's small staff dorm bathroom.

Hayun confirms that the mark is on her own skin.

Hayun treats her body like a crime scene before letting herself panic.

Hayun searches for ordinary explanations and finds none.

Hayun checks the room for signs of drinking and finally loses physical steadiness.

Hayun returns to the Sapphire Suite and performs normality with frightening precision.

During a quiet rotation break, Hayun uses her credentials to check the previous Monday records.

The marker file appears in the casino system under Hayun's name.

Hayun reads the legal details attached to the marker file.

Hayun turns from the credit office toward the casino's camera records.

After closing, Hayun enters the camera vault under security observation.

Hayun begins reconstructing the hour after her shift using surveillance playback.

The credit-office camera shows Hayun at the desk after clock-out.

Hayun confirms that the document in the footage matches the marker file.

The footage confirms two witness figures in the credit room without identifying them to Hayun beyond official codes.

Hayun searches for the route between her dorm path and the credit office.

The corridor camera where the movement should appear has been overwritten by a maintenance cycle.

Hayun lays the confirmed evidence into a timeline and sees the contradiction clearly.

Hayun pauses the credit-office footage on her own face at 5:48 a.m.