NieR Re[in]

Guide

He spends his days studying and working, casting
aside a normal high school life to focus solely on
his goal. He does this all so he might become a doctor
and save his ailing mother's life.

His classmates do nothing but slack. His coworker is nothing
but talk. The boy's days are weight down by all of society's ills,
and when he gets news of his mother's impending death,
it breaks him.

He plans to kill himself so his mother might have his heart.
His final moments stretch into eternity.
But before he can consume the poison,
the phone rings, informing him his mother has died.

He gets revenge on his father—he who drove his mother to death.
But then he realizes that her death was, in fact,
a homicide, and vows to spend the
rest of his days in search of retribution.