Seira Masuda
189 is a phone number to call when a child needs to be saved from an abusive situation. Children and adults can call that number, where they will be connected with the nearest child consultation center. Taiga Sakamoto works as a rookie child welfare officer. A girl that he worked with is being sent back to her mother. The girl was abused by her mother and stayed at a shelter. The next day, she loses her life. Taiga thinks about quitting his job. At this time, he receives a phone call from the hospital. A doctor calls him and tells him that a six-year-old girl's wounds looks as if they were caused by physical abuse. The abuser is assumed to be her father, but the girl's father denies any wrongdoing. Taiga and Attorney Shion Akiba try to prove that the girl was abused by her father.
Suzu Yamada
아츠히사는 아내 나츠미, 다섯살 딸 스즈와 함께 살고 있다. 아츠히사와 나츠미, 타케다는 고등학교 시절부터의 단짝 친구인데, 한때 가수가 되고 싶었던 아츠히사와 타케다는 중국어와 영어 교습을 받으며 언젠가 사업가가 되고 싶다는 무기력한 꿈을 꾼다. 어느 날, 아츠히사는 나츠미에게 다른 남자가 있다는 사실을 알게 되고, 나츠미는 아츠히사에게 이혼을 요구한다.
