Due to various personal reasons, a group of Yun Tae-o’s friends move into his house, where they experience love, friendship, and everything in between.

When they were children, Yoon Na Moo and Gil Nak Won were each others first love. They are forced to break apart when Na Moo's father Yoon Hee Jae, a psychopath serial killer, murders Nak Won's parents. 9 years later Yoon Na Moo is known as Chae Do Jin, a passionate and kind rookie detective wishing to atone for his father's sins. And Gil Nak Won is now Han Jae Yi, an aspiring actress following in the footsteps of her mother. She suffers from a panic disorder but still has a good outlook on life. However, the sadness of their past comes to light again and their short-lived encounter is over before it began. Another three years on, Jae Yi has become a popular actress and Do Jin is now an experienced detective. When their fate becomes connected once more, will their love prove to be stronger than their past?

Jae-wan, a successful lawyer, takes on the case of a rich executive's son, who has purposely run over and killed a man and left his daughter seriously injured. It's Jae-wan's job to defend a murderer, just another rung on his career's golden-stepped ladder. His younger brother, on the contrary, is a scrupulous and upstanding paediatrician, who always puts the health of his patients over profit and money, often contravening the rules of the private clinic where he works. The brothers meet once a month with their wives for fine dining in expensive restaurants, but when an unexpected situation involving their teenage kids arises, their consciences are questioned and their usual dinner conversation takes an unexpected turn.

An older brother is a washed-up boxer. His younger brother is a genius pianist with physical disability. The brothers make up through their mother who is full of stories of her past.

Ma Yi-Deum has worked as a prosecutor for 7 years. She sometimes resorts to drastic methods to win cases. One day, Ma Yi-Deum is transferred to a special division dealing only with sex crimes.

Oh Hyun-jin is the youngest executive at her company. She gives birth to a baby and stays at a postnatal care center. She is the oldest guest at the center for mothers and their newborn babies. While staying there, she meets other women, including Jo Eun-jeong, and they grow together as adults.

In his quest for a bride to break his immortal curse, a 939-year-old guardian of souls meets a grim reaper and a sprightly student with a tragic past.