Watch Movies2Watch. Hao Hao and Xi Xi each said goodbye to their exes and fell in love with each other. Like most couples, they argued during their relationship, but the storm would pass and things would clear up... When it came time to get married, they began to seriously consider whether they were suitable for each other. After all, like socks, they needed to be in pairs to go on together. Could mismatched socks be suitable to be together...?