Who Is The Killer In My Demon? The Real Villain And Ending Explained

My Demon is a South Korean television series about a contract marriage between Do Do-Hee, an heiress of a prosperous family business, and Jeong Gu-won, a supernatural being endowed with extraordinary powers. The series has many characters whose heartfelt performances have contributed to its success. But who is the killer in My Demon?

My Demon, one of Netflix's new K-drama series, has 16 episodes and combines comedy, romance, and action with themes of family drama and betrayal through the battle for power within the Mirai Group and Cheon-sook's family. The series aired on SBS TV from November 2023 to January 2024. It is known for its dramatic plot twists and mushy narrative.

About My Demon

My Demon is a South Korean TV series centred on an unusual love story between Do Do-Hee (Kim Yoo-jung) and Jeong Gu-Won (Song Kang), a 200-year-old demon. Do Do-Hee is the CEO of Mirae F&B. The two enter into a contract marriage for their reasons but fall in love amid a tragic past-life connection.

Do Do-Hee is a chaebol heiress orphaned early in life and adopted by her parents' close friend, Madam Ju (Ju Cheon Suk), portrayed by Kim Hae Sook. Ju Cheon Suk is the chairwoman of Mirae Group, one of the top companies in Korea.

Do Do-Hee is arrogant and cynical about love. Jeong Gu-Won meets Do Do-Hee on a blind date and later accidentally loses his powers suddenly after offering her a marriage contract. He must protect Do Do-Hee, who has taken all his power to prevent extinction.

Who is the killer in My Demon?

Who is the real villain in My Demon? Noah Suk Min (Kim Tae-Hoon). He is Madam Ju's eldest son and the CEO of Mirae Electronics. He killed his mother, Madam Ju, and made his son, Noh Do-Gyeong, take the blame for Madam Ju's death, which resulted in Do-Gyeong taking his life.

He also kills Do Do Hee, and Jung Gu Won sacrifices himself to save her. Noah expects to inherit the Mirae Group from his mother. However, Madam Ju leaves the company to Do Do-Hee. This enrages him, and he has to do everything possible to stop Do-Hee from taking away his birthright.

He is portrayed as a character who does not hesitate to kill those who stand in the way of him getting what he wants, even if they are his family. When Do-Hee gets married to acquire Madam Ju's wealth, Noah Suk Min runs a smear campaign against her.

Do-Hee is accused of killing Madam Ju, which damages her reputation. Noah's attempt on Gu-Won's life compels Do-Hee to renounce her inheritance, leaving him as the only heir apparent of Madam Ju's wealth.

Who killed Do Do Hee in her past life?

Do Do-Hee was killed by Noah Suk Min. Jeong Gu-Won loves Do Do-Hee so much that he sacrifices himself to save her after being killed by Noah.

What was the ending of My Demon?

The latest episode of My Demon begins with Jung Gu-Won regaining his powers, which he had previously transferred to Do Do-Hee, and becoming a demon again. He is extremely happy to have his beautiful tattoo back, which means he can control almost everything, including making his own coffee or teleporting with Do Do-Hee to the office.

Gu-Won then proceeds to make his first deal after returning as a demon. He finds a suitable target to make a deal. An old man wants his wife to recognise him for one last time. The demon tries to strike a deal.

However, after observing the old couple's interaction, Gu-Won's human-like emotions take precedence over his demonic ability, and he sheds tears. He returns without making a deal but wonders if he really cried. Do-Hee then meets Noh Suk-Min to inform him that she is safe and Gu-Won has returned.

Who killed Do Hee's parents in My Demon?

Her parents were involved in an accident when her mum was pregnant with her. Since the demon couldn't grant wishes to save them, he made a deal with Do Hee's father, who chose Do Do Hee's life over theirs. As per the deal, both parents would die after ten years.

Later in the series, Do Do-Hee discovers Madam Ju killed her parents, proving that with an audio of their argument in the past that led to the fateful accident.

Who dies in My Demon?

A few characters die in the drama series, including Madam Ju, Noh Do-Gyeong, and Do Do-Hee's parents.

Who does Do Do Hee marry?

She marries Jung Gu Won to claim her inheritance from Madam Ju. Do Do-Hee proposes to Jung Gu Won after Madam Ju's death. He at first turns her down but later agrees to marry her.

Final word

Who is the killer in My Demon? Noah Suk Min is portrayed as the killer in the K-drama series. He killed his mother, Madam Ju, and made his son, Noh Do-Gyeong, take the blame for Madam Ju's death, which resulted in Do-Gyeong taking his life. He also kills Do Do Hee, but her husband, Jung Gu Won, sacrifices himself to save her.

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