Kochan’s primary romantic interest, known for her directness and evolving maturity, who communicates her feelings through love letters and conversations.

A schoolmate of Kochan's who captivates him with his physicality and delinquent behavior, marking Kochan's early romantic interest.

A controlling figure who takes charge of Kochan during his early years, characterized by her protective nature and influence on his upbringing.

A beautiful, emotionally reserved woman who impacts Kochan with her expectations and reactions to his behavior.

One of Kochan’s few friends, who connects Kochan with Sonoko and remains significant to him beyond the narrative.

A frivolous peer of Kochan's, he aids Kochan in his understanding of relationships, without becoming a subject of Kochan’s deeper interest.

A schoolmate whose youth and physical attributes attract Kochan, serving as an object of Kochan’s fascination.

A flirtatious character who appears briefly and hints at knowing more about Kochan’s inner life than others, causing Kochan distress.

Kochan’s second cousin, whose aesthetic appeal captures Kochan’s attention during a period when he questions his attractions.

A distant relative, recently widowed, who kisses a feverish Kochan, providing insight into his feelings towards intimacy and attraction.