This is the continuation of Mystery of the Twin Sword I. In Mystery of the Twin Sword I, Rain wasn't in it.

The serie started out with Roger getting marry with Carol, but a guy interupted the marriage by coming in saying he got the key to the lock on Carol's foot. But things happened and he swallow it(I think, I forgot some parts, so bare with me.) So In order for Roger to marry Carol, he had to go find a sword (forgot what's the name of it) because not even his and Dicky's Twin swords could cut the lock. They finally found the sword at a palace of some place, but because of them taking the sword that were suppost to be there to trap the Bloody King (Vietnamese name :Huyet Ma) in his tomb, released the Bloody King. Roger and Dicky didn't know that at the time.

As for Rain, she was the daughter of a bird fairy and a human. She was raised by her dad and never know who her mom was. Her mom came back, but Rain didn't really accepted her and her own identity. She met Dicky before that and they went out. As for her mom, she was afraid Dicky was going to kill Rain when he finds out she is not 100% human, so she wants to find a way to separate them. One day, dicky and Rain went to a restaurant. Dicky made her drank some of the wine, the wine made her revealed her wings a little, so she went to the back to find some vinegar. And she found it.(This part is very funny) He found out Rain was half bird, half human anyway, but didn't kill Rain because he loves her too much. Later on, Dicky and Rain fell down a cliff and came to a kingdom. There the king made marry each other, but things happened and they have to decline it and went back to where they came from.

As for the Huyet Ma, he went around killing humans for blood. Roger by that time had cut the lock for Carol already. Dicky and Roger went to their old master in MOTTS I to find ways to destroy Huyet Ma. The only way for them to save the world is to find a talking playing ball named (Vietnamese: Thien La Dia Giong) They finally caught the ball. They challenged Huyet Ma and fought with him during dawn which the Twin Swords are most attive at, they almost got him, but the sun came out. To save everyone, Rain raised her wings and flew into the path where the sun rised. She died(I think, it didn't tell what happened to her, but you can tell that she died) Dicky was sad and devastated, but nothing could be done now. As for Roger, he married Carol.

To my happiness, there was a cartoon at the end and Rain was one of the cartoon. I can't remember what it was about. Sorry! =(