Misaki Unasaka

Miri's mother. A snack bar owner and singer. While pursuing her dream of becoming a singer, she had an affair with Miri's father, a mafia boss, and ended up giving birth to Miri as a single mother. However, this led her to give up on her dreams and she came to harbor nothing but hatred for her daughter, effectively abandoning her. Plagued by bad luck with men and leading a rough life, she developed metastatic cancer in her neck, got fired from her job, and was abandoned by her man. In episode 10, she has a change of heart, suddenly appears at the Aozora Nursery School where Miri attends, and decides to take Miri back and return to her parents' home to start living a decent life, pleading her case to Kazuki and Rei after explaining everything to them. In fact, when the cancer metastasized to her neck, she was contacted by Kyūtarō and was informed by him about Kazuki and Rei being assassins and everything about Miri's current situation, knowing the true nature of Kazuki and others. Concerned about the social implications of having parents who are assassins, she decided to take Miri back. She hides the scar from the cancer on her neck with a scarf.

After taking Miri from Kazuki and Rei, she started a new life as a single mother with Miri, trying to lead a happy life. However, she caught the attention of Suwa, and was shot by a bullet from Ogino while he was conducting a background check on her. Just before dying, she entrusted Miri to Kazuki.