Episode list

With the sudden death of their parents, Riki is forced to grow up too fast to take care of her little sister Yumi. Now both grown-up, the two still can't get along. Worse, Yumi harbors feelings for her sister's lover Marco. Marco and Riki get engaged, breaking Yumi's heart.

The sisters get into a fight which reopens old wounds. After, Riki finds a memory drive containing evidence that there might have been foul play in their parent's death. Yumi gets in trouble at a party and calls for her sister's help. En route to Yumi, Riki is assaulted by armed men.

Riki is reunited with her childhood friend and doctor, Frank. Riki is concluded to have dissociative amnesia. Riki and the rest of the family struggle with her condition. But hearing about her parents's death surprises Riki, she escapes from the hospital to find them.

Riki's brought home by Alberto after finally realizing her parents indeed passed on. Yumi and Riki adjust to each other with difficulty given their reversed roles. Marco is pushed away by Riki as she holds no affection for him. Yumi spends more time with Marco.

Riki and Yumi's cat-and-dog relationship worsens, but the two agree on a truce, promising each other not to hurt each other purposely. The police Meanwhile tensions rise when Marco sees how RIki grows fonder of Frank and more hateful of him.

Riki helps out Yumi with schoolwork, making Yumi realize she likes this version of her sister better. On the other hand, the police still shows no progress in Riki's assault case, to the satisfaction of the person behind it-Alberto. With Christmas looming, the sisters make preparations.

Riki and Yumi celebrate Christmas with Marco, Alberto, Frank and Patrick. Riki finds Alberto rummaging around the house looking for the memory card, what he was after when Alberto had Riki attacked. Alberto gets off with lies but leaves Riki doubtful.

Riki tells Frank her true feelings. Marco sees Frank kissing his fiancé Riki, the two get into a fist fight. Riki tells Marco to leave, her hatred growing. But the two are forced to see each other again when a client demands for Riki's presence in the office.

To Yumi's surprise, Riki is all for the Yumi-Marco relationship. But later, Marco apologizes to Yumi, saying the kiss was a mistake and she's just a sister to him. Yumi is devastated but doesn't believe him. In an attempt to give way for Yumi, RIki runs away from home.

Yumi stands her ground and tells Marco she'll wait for him to own up to his feelings. Meanwhile, Alberto finds out that the Gonzales' fortune is in a joint account held by both Riki and Yumi.

Yumi is heartbroken. Marco confronts Alberto about his involvement in the Gonzales' death years ago.

With Riki back, Alberto insists that they pick up where they left off-preparing for Marco and Riki's wedding. Marco, ridden with guilt over Alberto's past, goes with the plan.

Riki admits to Frank that she loves him too. After which, she confronts Marco. He admits having fallen for Yumi. The two break off their engagement amicably.