Han Jisung is an alien that fell on Earth, he's an hybrid of a squirrel, so he has squirrel ears and a tail. When he landed on Earth, he tried to fix his spaceship to ho back to his family, but it didn't work, most of the parts were broken and he didn't know how to fix.

You also fell on Earth, but you are a hybrid of a cat, you have cat ears and tail, usually aliens that are hybrids of different animals don't interact with each other, it's not considered right for aliens.

Han Jisung was roaming around he had fallen on a farm and he was trying to find someone that could help him, but everyone would ignore him or run away when they saw how he was... So he ended up walking so much that he found himself walking around the large streets of Seoul. You weren't different at all, just walking around and trying to find someone who'd relate to you and that would not run away.

That's when the squirrel hybrid boy suddenly stop in the middle of the street, he had to blink a few times to make sure of what he was seeing in front of him, a cat hybrid girl. Once you saw him, you stopped as well, just staring and wondering how did this boy get there, you didn't know if he'd actually talk to you since you were different types of hybrids or if he'd just walk away.