Pilots Tae-in and Gyu-sik are set to fly to Gimpo. Under the guidance of flight attendant Ok-soon, passengers are busy boarding. However, shortly after takeoff, a homemade bomb explodes, turning the cabin into chaos.

Green is a professor in a long-term relationship with her lesbian partner. Failing at preparing the deposit for the house and Green being laid off for helping her homosexual colleague, the only option they can choose is to move in with Green’s mother. As their awkward stay prolongs, the mother drives all her energy into her job as a caregiver.

Drained from her life in the city, a young cellist moves to a quiet small town, where she encounters an old friend who helps her heal and remake herself.

Lee Gyu Won is the daughter of one of the top three maestros of pansori and is also a gayageum protégé herself. Following her grandfather’s wishes for her to study the gayageum, she enrolls as a major of gugak, or traditional Korean music. Lee Shin is unfriendly, yet a clever student in the Applied Music Department who also is the famed vocalist and talented guitarist of the handsome band named The Stupid. With charming looks equal to those of a handsome character in a romance comic and a cold, taciturn personality, he thinks gugak is boring and belittles it. As the vocalist Lee Shin and Gayageum Protégé Lee Gyu Won passionately confront each other to champion their respective music, they soon fall in love.

When mysterious alien spheres start invading the world, high school students are called upon to join the world’s first war against extraterrestrial forces.

Circumstances condemn Oh Soo and Oh Young to loveless lives. After the untimely death of his first love, Oh Soo turns to an ambitionless life as a derelict gambler. The gorgeous Oh Young should be leading the perfect life as an heiress, but when her parents’ divorce crumbles the family, she faces the reality of living life alone—particularly in light of her increasingly impaired vision. When these two heavy souls cross paths, fate delivers a chance meeting that will change their lives forever.