The Supreme Court upheld a high court ruling, Tuesday, that denied unfaithful husband the right to file for a divorce.
The top court ruled against the man who sought to divorce his estranged wife after living with another woman, citing a lack of legal protection measures to protect the wife and the children he previously had with her.
The suit was filed in 2011 by a man, surnamed Baek, 68, who had separated from his wife and lived with another woman, surnamed Cho, since 2000. Baek had three children with his wife, and has since had one with Cho.
Both district and appellate courts dismissed Baek's request for the divorce saying he was responsible for the destruction of the marriage by living with another woman and fathering an illegitimate daughter.
Over the past 50 years since 1965, a party responsible for ruining a marriage has been barred from filing for divorce.
Divorces are granted on the grounds of irreconcilable differences, irretrievable breakdown of a marriage, or others reasons that undermine a union.
In Tuesday's seven-to-six decision, the justices said the current law lacks provision for spousal or child support following a divorce. Accepting only men's request to exit marriage puts the wife in dire financial straits, the court said. Many divorces here are carried out based on mutual agreement, the top court added.
"More than 77 percent of the couples here divorce after assuming some portion of blame, which is in effect no different from no-fault divorce recognized in other countries," the justices said.
"Therefore, it is an excessive claim for men to seek a divorce after having an affair citing their right to freedom of choice and to pursue happiness," they added.
Prior to Tuesday's ruling, calls have mounted demanding that the law should allow two individuals to lead separate and autonomous lives.
Those that demanded the change have claimed the law infringes on their right to freedom of choice and to the pursuit of happiness.
They also claimed that the law undermines the basic idea of marriage, which should remain a personal, private, and significant matter between two persons.
Others have long argued that if courts accept a unilateral dissolution of marriage requested by a spouse having an extramarital affair, mostly men, wives without financial capability and their children are subject to undue distress due to no fault of their own.
Absent any countermeasure to prevent such victims from occurring, the law only enables those who aim not to take full responsibility for their marriage, ultimately eroding trust in the society, they argued.
They also claimed that according to civil law, marriage is a legal contract bound by the principle that the related parties should put as much effort into, which applies to any other form of contracts between individuals.