Kimura’s Parents Return to Danger
Bullet TrainShigeru and Akiko leave retired domestic life to protect their son and grandson, drawing on the professional skills they had hoped to leave behind.
increasing
Bearing strength in each event
decreasing
A Call from the Train

A Call from the Train
Concern takes shape
Shigeru receives a call from a teenager who says Yuichi is in trouble and Wataru may be in danger. The caller gives too little information to make the warning easy to verify.
Shigeru’s old instinct for danger tells him the call carries bad intent. Akiko listens, checks the train timetable, and prepares to go with him rather than leave him to face the uncertainty alone.
The Old Partners Mobilize

The Old Partners Mobilize
Retired skills return
Shigeru and Akiko retrieve their old equipment and prepare for the journey north. Their conversation recalls years of dangerous work and the reasons they abandoned it when Yuichi was born.
The preparation is not merely nostalgia. It reveals a practiced partnership that remains available when family is threatened, despite age and long retirement.
Confronting the Prince

Confronting the Prince
Family becomes a united front
Shigeru and Akiko find the Prince and Nanao aboard the train. They challenge the boy’s account and refuse to treat him as harmless merely because he is young.
Their arrival ends the Prince’s isolation of Kimura as the only adult capable of interfering. Their knowledge and directness restore a family presence around the danger to Wataru.
During the final portion of the journey
After the warning, before boarding at Mizusawa-Esashi
Aboard the train, near Morioka