8. Chi is troubled

This episode marks a new stage in Chi's emotional awakening, as she is confronted with feelings she cannot fully name or understand. This unease, whose origin is deliberately left ambiguous — budding jealousy, confusion at her own reactions, or the distant echo of a buried memory — allows the series to deepen the psychological dimension of its main character beyond the simple candor of the early episodes. Hideki, for his part, finds himself at a loss faced with this different Chi, less spontaneously cheerful, and must learn to deal with the growing complexity of the person he thought he knew. This episode illustrates with great subtlety a central principle of the series: as Chi learns to feel more deeply, she also becomes capable of suffering, and this new emotional vulnerability brings her experience closer to the universal one of any being in the process of growing up and discovering itself. Madhouse's direction here favors silences and lingering looks over verbal explanations, an approach that heightens the sense of mystery surrounding Chi's emotions while avoiding a premature verdict on their authenticity. This is a pivotal episode in the construction of the character, one that lays the emotional groundwork for the more substantial revelations to come in the second half of the series.