Yohan and Kazumi's quarrel is the decisive rupture between two former best friends: a dispute over Vixon becomes a violent confrontation that destroys their trust, exposes Yohan's emotional dependence on Vixon's version of events, and leaves Kazumi unconscious in the Hospital. The scene is not merely an argument. It converts a friendship into enmity in Yohan's eyes and makes the conflict physically consequential.

Causes and Background

The quarrel grows out of Kazumi's alarm over Vixon's influence on Yohan. She tells Yohan that he is too quick to believe someone when he is deeply in love with that person, and that his attachment makes him vulnerable to lies. Her warning is aimed at what she sees as a pattern: Yohan is accepting Vixon's claims because his feelings have overridden his judgment. The argument therefore carries two competing understandings of loyalty. Kazumi treats friendship as the duty to intervene when Yohan is being deceived, while Yohan interprets her intervention as an attempt to prevent his happiness with Vixon.

Kazumi then raises the most serious accusation in the scene. She says that she saw Vixon having sex with Zhara in the Office when no one else was present. The revelation is interrupted before she can finish explaining it, but its function is clear: she is trying to connect Vixon's manipulation of Yohan with a concealed sexual relationship. The disclosure threatens the image of Vixon that Yohan has chosen to trust, and it also shows how little room remains for calm interpretation between the two friends.

The Quarrel and Physical Escalation

Yohan reacts with anger rather than investigation. He slaps Kazumi before she can complete her warning, making his disbelief an act of bodily domination. He insists that Kazumi has changed since Vixon began working there and refuses to grant her special credibility merely because she was once his best friend. His response specifically downgrades their relationship from a present bond to a past one, while accusing her of lying and declaring that Vixon could never do what she describes.

The emotional break becomes explicit when Yohan says that he can no longer consider Kazumi his best friend and feels that she is his enemy. He frames the conflict as a question of his right to be happy with Vixon, asking why Kazumi refuses to let him be happy. The scene thus reverses the meaning of her warning: concern is recast as hostility, and Yohan's desire for happiness becomes the justification through which he dismisses the person who knows him best.

Kazumi continues trying to argue that Vixon will not make Yohan happy and is only using him. She cannot finish this second warning. Yohan grabs her hair and pulls it violently. Kazumi cries out for him to stop, describing the pain of the hair-pulling alongside the pain caused by his words. The two injuries are presented together: the friendship is damaged through speech, while the body registers the damage through force. The escalation has no negotiated resolution. Kazumi becomes dizzy, feels close to fainting, pleads for Yohan to stop, and then loses consciousness.

Witnessing and Immediate Aftermath

Vixon observes the confrontation from near the doorway without Kazumi or Yohan noticing him. His perspective reveals that the quarrel is not simply an accidental explosion. He regards the scene as a successful mission, watches Kazumi beg Yohan to stop pulling her hair, and leaves while the two continue fighting. His silent amusement and satisfaction position him as a hidden beneficiary of the rupture: the former friends are destroying their bond while he remains outside the direct line of accusation.

Yohan's behavior changes once Kazumi collapses. After leaving the confrontation, Vixon notes that Yohan panics. Yohan then takes Kazumi to the Hospital immediately. Three hours later, he is still there because she has not regained consciousness, and he anxiously asks the doctor how she is. The Hospital sequence does not erase the assault, but it establishes a stark reversal in Yohan's position: the person he has just called an enemy is now someone whose condition demands his immediate care.

Consequences and Narrative Significance

The quarrel produces a major value shift. At its beginning, Kazumi and Yohan still occupy the unstable ground of intimate friendship, with Kazumi attempting to protect him through an accusation he does not want to hear. By the end, Yohan has verbally severed the friendship, physically attacked Kazumi, and caused her to lose consciousness. Trust, once treated as the foundation of their relationship, has become the source of the accusation that she is interfering with his happiness.

The scene also demonstrates how misunderstanding becomes dangerous when filtered through emotional allegiance. Kazumi's evidence is incomplete because Yohan interrupts it, but his refusal to hear it is not neutral: he has already decided that Vixon is innocent and Kazumi is lying. Vixon's concealed witnessing sharpens the irony. The person who claims to want Yohan's happiness is able to watch Yohan injure the friend who challenges him, while the consequences fall on Kazumi's body and on Yohan's conscience.

Narratively, the event functions as the dark break in Yohan and Kazumi's relationship. It gives physical form to a conflict that had previously been carried by suspicion, jealousy, and competing loyalties. Kazumi's unconsciousness ends the argument without settling its truth, leaving the accusation against Vixon unresolved while making the damage between Yohan and Kazumi undeniable. Yohan's presence at the Hospital suggests panic and responsibility after the violence, but it does not undo the decisive fact that the friendship has crossed into direct harm.