Jack: The American Ghost is a Korean Webtoon created by Han&An. It is a horror, mystery, and romance about Go-Eun Ma, a strange woman who, along with her father, owns a ghost house in an amusement park. But after she finds out it will be destroyed for a new attraction, she decides to go to The Dunn Rose Mansion, the house of a famous musician named Jack Bland who committed suicide at a young age that is rumored to be haunted, and now awards one million dollars to anyone who can stay for two weeks.
However, she soon discovers that there's more to the mansion than it seems, and accidentally gets involved in a deal with Jack's ghost, although she doesn't know it's actually Jack.
The English translation for both season 1 and 2 can be found here.
Jack: The American Ghost contains examples of:
- All Love Is Unrequited: Cindy’s obsession with Jack, Jack’s obsession with Misha, and Aidan’s feelings for Go-Eun.
- Aloof Dark-Haired Girl: How Go-Eun appears to others.
- Audio Erotica: Go-Eun apparently has an amazing speaking and singing voice. She was even able to make ghosts pay no attention to Jack's piano playing when she sang to herself.
- Big Bad: Sebastian, who wants Jack’s soul very badly.
- Break the Cutie: Jack and Go-Eun's backstories, oh my gosh.
- Crazy Jealous Guy: How Jack appeared when he was alive whenever Misha came around. Although one suspects whether some of his behavior around Aidan was part of this. He did say it bugged him how Go-Eun would leave with a million dollars and a man.
- Creepy Child: How Go-Eun appeared after her mother's death.
- Dead All Along: Cindy.
- Emotionless Girl: Go-Eun doesn't feel things very strongly, although she begins to eventually express herself more and more as the series goes on.
- Haunted House: The Dunn Rose Mansion, of course.
- Interspecies Romance: Go-Eun, a human, and Jack, a ghost.
- Large Ham: How Jack appears during his mood swings.
- Loony Fan: Cindy, whose every motivation revolves around Jack.
- Love Before First Sight: It's revealed that Jack and Go-Eun were at the same mental hospital for a while, and he fell in love with her by hearing her sing, despite not knowing what she looked like.
- Love Hurts: Jack and Go-Eun inadvertently cause each other a lot of pain while trying to help each other.
- Love Makes You Crazy: Jack strikes a deal with Sebastian to bring him back to life so he can be with Misha. Possibly subverted, as Go-Eun notes it’s not love, but obsession.
- Nerves of Steel: While the ghosts terrify or nearly drive everyone mad, Go-Eun remains convinced that there are no ghosts, and that they're all employees, which makes her utterly unafraid.
- Obsession Song: A non vocal version. Jack plays the song he’s composing about Misha to Go-Eun, who notes that the passion in it does not seem like love, but obsession.
- Sanity Slippage: While she wasn't that sane to begin with, Cindy definitely goes off the deep end by the end of the series.
- Scary Shiny Glasses: Sebastian's mono glass does this frequently. So does Cindy's glasses.
