Nayoung's a trained assassin. She's the best at what she does. One day, she's set on the task of murdering a drug dealer... But it doesn't quite go to plan.

Nayoung doesn't like girls.   Well, she might. Just a little. But girls are very confusing.

Cats are said to have nine lives and now humans do too. When a human dies, they retain the knowledge they learned in their previous life, becoming more and more skilled/knowledgeable with each passing life. Nayoung is on her 7th life consoling Jieqiong who has just “died” for the first time.