Claude attends a French academy with fellow students Marion, Ledania, Lind, and Jacques. He harbors deep, unrequited romantic feelings for Marion, keeping them hidden from others. These suppressed emotions intensify within the boarding school setting, fueling significant internal turmoil.

His concealed affection culminates in an attempt to assault Marion following Marion's involvement with an older woman. This act profoundly damages their friendship and escalates existing tensions within the group. Claude's unresolved feelings further entangle the group's rivalries, particularly as Lind and Jacques both develop affections for Ledania.

Interpersonal conflicts reach a critical point when Lind and Jacques engage in a pistol duel over Ledania. During this confrontation, Claude's emotional instability and despair manifest dramatically. He intervenes in the duel, sustains two gunshots, and ultimately commits suicide.

His death signifies the culmination of the boarding school's tragic dynamics, marking a pivotal moment in the group's dissolution. The aftermath includes Marion's departure from the academy, leaving the relationships permanently fractured.