Johan Liebert, the mysterious antagonist of Monster.

Monster is a psychological thriller manga created by Naoki Urasawa. The series is widely praised for its deep storytelling, complex characters, and intense suspense.

The story follows Dr. Kenzo Tenma, a talented Japanese neurosurgeon working in Germany. Known for his skill and dedication, Tenma faces a difficult moral decision when he chooses to save the life of a young boy instead of a powerful politician.

Years later, Tenma discovers that the boy he saved, Johan Liebert, has grown into a dangerous and mysterious criminal. Realizing that his decision may have allowed a “monster” to live, Tenma begins a long journey across Europe to stop Johan and uncover the truth behind his past.

As the story unfolds, the manga explores themes of morality, justice, and the nature of evil. With its gripping narrative and psychological depth, Monster is considered one of the greatest thriller manga ever created.

Official artwork from Monster manga by Naoki Urasawa featuring the psychological thriller story centered around Johan Liebert.