1. Yesung breaks up with his girlfriend and is lost. He doesn't know what to do. The other members are too busy with their schedules to help him. Kyuhyun visits him every day and tries to cheer him up. Everyday they grow closer and...
2. Yesung and Kyuhyun go to the same college. They become roommates. Yesung is a studious boy who doesn't care about his appearance at all. All he cares about is studying. He's never touched himself (if you know what I mean), had a serious relationship with anyone, or had any friends. He's always bullied. Kyuhyun is a popular playboy. He's also one of the bullies.
3. Yesung is a zombie hunting robot. When his job is to protect Kyuhyun, a valuable person for the plan, what will happen to the couple?

So these are the ideas I came up with. The first two are a simple love story... It's just like the others. the last one is where I had to think hard xD I need your opinion.