Sachiko Fujinuma

Sachiko Fujinuma is Satoru's mother and former news announcer. She possesses a sharp eye and is quick to observe any irregularities. She knows about the cold cases of serial kidnapping in her town but decided to keep quiet and ignore it due to her child's growth and safety. However, after having eye contact with the criminal at his latest kidnapping attempt, she was silenced and killed by the kidnapper, which triggered Satoru's 18 years "Revival". Originally, Satoru was supposed to prevent the Serial Killer from noticing Sachiko's presence in the Parking Lot, where the first Revival of the day occurred, to prevent her death.

History
When Satoru was a child, Sachiko got into a fight with the company president and quit the construction contract she had worked for years. He beat her up after she refused to marry him. When Satoru asked what happened, she lied and said that she had just tripped.