Shori's first symbiont who grapples with feelings of jealousy and conflict as he adjusts to the dynamics of the Ina-symbiont relationship and the growing group of symbionts.

An older woman who becomes Shori's second symbiont due to feelings of loneliness and dissatisfaction and plays a key role in the evolving family dynamics.

These symbionts, having grown up surrounded by Ina, help Shori learn about Ina culture; Joel uniquely chooses Shori as his host, demonstrating the positive potential of their symbiotic relationship.

A community of male Ina and long-time allies of Shori's family who provide her with protection and support as she learns about her heritage and seeks justice for her family's murder.

A racist family of male Ina who serve as antagonists due to their white supremacist beliefs and their role in the murder of Shori's family.

An elder Ina and advocate for the Silks who struggles with internalized racism, leading her to oppose Shori and act against her during the Council of Judgment.