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 for her child's growth and safety. However, after making eye contact with the criminal at his latest kidnapping attempt, she was killed by the kidnapper. This, in turn, triggered Satoru's "Revival" which sent him 18 years back in time. 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.

Appearance
She is a young beautiful woman with pronounced lips and a good figure. She had long hair in her younger years but has it in a bob cut in the future before the revival. Years later she still looks surprisingly young despite being in her fifties.

Personality
She is a kind caring independent strong willed woman. She is very observant, noticing Satoru's strange behavior and instantly picking up hints on him meeting up with Kayo, whom she considers his girlfriend and is extremely supportive as a mother, helping him in any way she can and providing advice for him. When he begins to rely on her, she is truly pleased. At times she feels she doesn't fully understand her son but she never stops caring for him. He refers to her as a demon due to her ability to read his thoughts, something he finds scary though he deeply loves her. She tends to keep things to herself in order not to worry others especially her son (such as when the company president beat her for not wanting to marry him). In addition, when she tells the truth but wants to hide it she'll bluntly state out the truth and then say "just kidding". She tend to pry into Satoru's personal affairs, such as his love life much to his embarrassment. She is nosy and sometimes lacks delicacy (mostly in regards to her son's personal matters) and tends to do as she pleases, but is a kind person and she admits Satoru is the most important person in the world ti her, When he falls into a coma, she makes sure to take care of him everyday until he gets better. She is described a strong, as she has suffered more than most but is still capable of moving forward and encouraging others. To Kayo, whom she spends a great deal of time with while the two care for a comatose Satoru, she is a second mom as Kayo herself refers to her as a mother while Sachiko sees Kayo as the light that illuminated the dark world she was in when Satoru first fell comatose, highlighting not only their close bond but also her motherly nurturing nature.

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 asked what happened, she lied and said that she had just tripped. Later on, she would go to divorce her husband, something she was fine with but felt she had taken something important away from Satoru that she could never atone for.

She was first seen in Satoru's house after he was released from the hospital. She asked him about his eating habits and then let to buy tableware.

Later, while watching TV, she asked her son if he remembered the incidents that took place when he was in 5th grade.

A few days later, she and Satoru were returning from the convenience store when Satoru experienced "Revival" again and asked her to look around for any irregularities in their surroundings. During this, she made eye contact with the serial killer and was killed before she could inform anyone. This triggered his 18 year revival.

During both of her son's time leaps, she helped him save Hinazuki from her mother's abuse, though she didn't know about the murders.

After Satoru fell into a coma, she kept him on life support even after the hospital recommended against it. In 1989, she moved into an apartment and started home care. She took care of him for the next 14 years until the time he woke up.