Ai-oon's identical twin Ob-oom is in a tragic accident the night of her wedding. Ob-oom survives but is left in a com...

Jan, Ob-oom's best friend, tries to discover the truth behind the accident that happened to Ob-oom and her husband. M...

Ai-oon realizes how small her position is in her grandmother's heart compared to her twin, as she also has to face co...

Ai-oon goes on a date with May.

Jealousy ensues when exes are visiting

Aioon and May inspire each other to face their fears

Ai and May go to a party. Heartbreak follows after some misunderstandings.

May reminds Ai of their first real meeting.

Ai and May confirm their love. Oom wakes up from her coma.

Ai makes a heartbreaking decision. May fights for Ai. Oom is trapped between the two.

Ai and May finally reveals all their shared secrets. Oom is heartbroken. Ai makes a sacrifice for her sister.

A happy ending with a wedding.