both depict a spirit roaming between the world of spirits and Earth.

both tackle school life and the love triangle between two teachers and a student. Though Biscuit Teacher and Star Candy narrates a more serious and mature tale.

both movies portray the daily life of contract killers in a sarcastic and human way. Killers are also humans. Killers cannot live the way others do because of the guilt weighing on their shoulders.

both investigate crimes committed in hotels with unexpected and exciting twists.

Seol Nae Il and Lee Sun Jae are genius gemstones with a bright future as pianists. Both pour their hearts in the piano without restrictions. They let their hearts play and they face the conformity and the coldness of the world.

both depict the life of two young and talented conductor; the hardships they face, the loneliness of the path they choose and the awesome mentors and friends they meet. Both drama drowns you into the depth of the classical music, the serenity the instruments provide and the beauty of music.

both are dramas set in the prosecution offices and both tackle corruption and inner battles.

both are dramas set in the prosecution offices and both tackle corruption and inner battles.

Both have different love stories; touching, deep and romantic love tales.

Both have different, separate and touching love stories between different couples.

Both have aliens living in Earth due to unexpected circumstances and hilariously trying to adapt.