Both are about murderers and their lawyers who fight against the death sentence.

The World Between Us is about the murderer´s family and the victims family and Hokyto is about how a child turn murderer.

In both there are women who fell in love with someone, and a husband who try to fix their marriage.

Both are about the problems of marriage.

In both, there is a woman, apparently a nice person, who wants to take another woman's husband and she has a hidden intention.

In both, one of the parents wants to take the child to the other parent.
in both, one of the parents did not know they had a child and do not like the other father.

In both, the woman falls in love with somebody else
Both dramas are about marriage crises and the weight of the family in law

In both there is change of bodies. In both an adult changes his body with a teenager. In one It is a criminal with a student, in the other It is a father with his daughter.