This study examines the psychological conflict represented by Hibino Kafka in Naoya Matsumoto's manga Kaiju No. 8 through Carl Gustav Jung's psychoanalytic approach. The kaiju phenomenon, originally a representation of collective trauma, has evolved into a symbol of individual inner conflict, with Kafka embodying the struggle between social identity and the unconscious. Using a qualitative descriptive method grounded in the concepts of persona, shadow, anima-animus, self, and individuation, the study finds that all four archetypes manifest progressively throughout the narrative. Kafka's persona shifts from the mask of "someone who has given up" to a deeper denial of his kaiju side. The shadow embodied in Kaiju No. 8 is both personal and collective, carrying centuries of human hatred and helplessness toward kaiju. The anima projected onto Ashiro Mina acts as a guide that stabilizes Kafka's psyche at his most critical moments. Through the stages of individuation ego inflation, alienation, confrontation with the shadow, integration, and the attainment of self Kafka ultimately integrates every aspect of his personality into a unified identity. His journey thus becomes a universal symbol of how true identity is formed through the courage to embrace all aspects of the self, even the darkest.
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