Monster | Episode 1

Haunted by his previous choice, Tenma defies orders and stays to operate on Johan.

While Tenma is at his lowest, the hospital leadership—including the Director and the doctors who replaced Tenma—are suddenly and mysteriously murdered. With his rivals gone, Tenma is ironically promoted to Chief of Surgery, but the boy he saved, Johan, has vanished from the hospital along with his sister. Monster Episode 1

The episode ends by setting a 9-year time jump, where Tenma will eventually realize that the life he sacrificed everything to save was that of a sociopathic killer. Haunted by his previous choice, Tenma defies orders

: Tenma’s career is instantly derailed. He is stripped of his promotion, Eva breaks their engagement, and the Director ensures he has no future in medicine. The Twist: A Grim Reward The episode ends by setting a 9-year time

The episode introduces Tenma's internal struggle through two pivotal moments:

: The episode questions if all lives are truly equal, as Tenma's "moral" choice leads to a darker outcome.