A Korean woman known for her intelligence, who becomes a pivotal figure in Hata's past due to their complex and tragic association during the war.

Hata’s adoptive daughter, who becomes a successful manager despite a challenging relationship with her father and her own tumultuous past.

An American widow and neighbor of Hata, with whom he develops a relationship that is ultimately marked by emotional distance.

A doctor in the Imperial Army who shows a disturbing interest in K and serves as a critical figure in challenging Hata's moral and emotional fortitude.

A couple who purchase Sunny Medical Supply from Hata and face personal and financial difficulties over the years.

A young soldier in the Imperial Army who takes a stand in a critical and compassionate moment during the war, affecting Hata deeply.

A Bedley Run police officer indebted to Hata for his support, who later becomes a key figure in maintaining a connection to Sunny.

An enthusiastic real estate agent who helps Hata restore and sell his home after a fire, demonstrating care and involvement in his life.

Hata’s Indian friend whose engagement to Olivia and near-death experience prompt reflection on friendship and identity.