Both dramas are based on deep-seeded past family revenge plots - carried out by a daughter in one series, and a son in the other drama. Both children set-out to take revenge on both of their father's enemies - their targets the families of those enemies. One target family has three brothers, and the other has three sisters. In both dramas, the siblings are apart of the plot.

Both are about a marriage of convenience contracted between the main couples.

Both (one to a lesser degree) have to deal with medical blindness and the caretaking of one of the main leads by the other lead.

Both have outside forces plotting against the relationship.

Both dramas have to deal with life struggles. Interference from outside a relationship, and misguided opinions from within. Both, come with sacrifices only seen from the outside. Because, both series are about soul mates, and what they think is important in their lives is not a hardship. It's their love, and their life.

Both female leads have controlling and verbally abusive mother-in-laws.

Both female leads are cheated on by their husbands during marriage.

One Female Lead is physically abused by her husband. And both female leads are abused mentally by their husbands.

Both female leads try to stay in the marriage, but eventually divorce their husbands.

Both stories, are long-term revenge plots. Both, driven by old family tragedies. Both avengers set on destruction.

Both take place between co-workers in an office setting. Both BDSM, with a master-slave relationship story line. One adapted from a manga, and the other a webtoon.

Both families live in times of great change, and the pressures that come from those changes. Both strive to keep traditional family together, while embracing their future with open eyes. Both period pieces, in different eras. Family, being the one thing that connects them over time.

The revenge in both dramas is centered on the child's hidden identity. While both are orchestrated by a vengeful parent.

The unfaithful (Mina and Chat, Jennifer and Jay) driven by desire, and the two faithful (Vee and Jay, Kua and Nam) trapped by love, and used for lust.

HiGH&LOW THE MOVIE 2 / END OF SKY (2017) is the third movie in the series; HiGH&LOW. And HiGH&LOW THE MOVIE 3 / FINAL MISSION (2017) is the fourth movie in the film franchise. Both movies feature insane all-gang battles. Highlighting all five S.W.O.R.D. gangs and the Amamiya brothers.

HiGH&LOW: The Red Rain (2016) is the second movie in order to watch in the series; HiGH&LOW. And HiGH&LOW THE MOVIE 3 / FINAL MISSION (2017) is the fourth movie in order to watch. Both movies feature insane all-gang battles. Highlighting all five S.W.O.R.D. gangs and the Amamiya brothers.

HiGH&LOW: The Red Rain (2016) is the second movie in the series; HiGH&LOW in order to watch. And HiGH&LOW THE MOVIE 2 / END OF SKY (2017) is the third film in order to watch. Both movies feature insane all-gang battles. Highlighting all five S.W.O.R.D. gangs and the Amamiya brothers.