Usagi cut her wrist in a desperate and shocking attempt to prove her existence to Arisu.
This drastic action occurred during a critical moment in the narrative. Arisu, under the influence of the Queen of Hearts' spell, had his memories and connection to Usagi severely distorted, causing him to doubt the reality of their shared experiences and even her very presence.
The Desperate Act and Its Profound Impact
Usagi's self-harm was not an act of despair in isolation, but a visceral and final plea aimed at jolting Arisu back to reality. By performing such an undeniable act in front of him, she sought to:
- Establish Tangible Reality: Provide undeniable physical evidence of her existence that could cut through the psychological manipulation of the spell.
- Reawaken Memory: Trigger Arisu's forgotten memories, specifically his unwavering promise to protect her no matter what.
- Break the Illusion: Force him to confront the stark truth and break free from the Queen of Hearts' deceptive influence.
This extreme measure proved to be the catalyst. Witnessing Usagi's act, Arisu's true memories resurfaced, allowing him to break free from the powerful illusion. This pivotal moment reignited his resolve, leading him to return to Borderland to finish the game of croquet, which ultimately brought an end to the deadly challenges once and for all.