Its similar in the main lead changing into two character with totally opposite personalities. The secret life of my secretary where the female lead accidentally change her character to another person without the male lead knowing. While, Fall in love with me, the male lead changes his personality into complete opposite of himself without being recognize by the female lead

similar in being ugly to beautiful girl transformation of the main lead, both shows are also same in school setting

unrequited love, similar in having friends with people who have unrequited love and struggling to overcome or stay in the relationship

It is both a fantasy genre.
Also both are about mermaid and meets human beings.
so if you are interested in mermaids and sea life this is a match.

It is both a fantasy genre.
Also both are about mermaid and meets human beings.
so if you are interested in mermaids and sea life this is a match.

It is both a fantasy genre.
Also both are about mermaid and meets human beings.
so if you are interested in mermaids and sea life this is a match.

1. The story is similar in terms of both have work relation to lawyer in field of divorce .
2. Another similar in both series is the friendship of female lead and her girl best friend who became her enemy and a very touching reconciliation.

Both a Best friends for a long time, not knowing how to break the best friend code.
Both Female Lead are strong independent women, but when it comes to love they tend to not in themselves.
Both Male Leads are very supportive and loyal to the female lead.
It is also both a romantic comedy Asian drama. <3

SAME female lead her character is somewhat the same and second male lead also same but here in coffee and vanilla, he is more a mature character..