You are a demi-human cat. You can just transform into a tiny furry cat whenever you want to. And your human form includes your furry tail and cat ears.

You were running around in your cat form and suddenly fell on deep mud and struggled to get out, you cannot even transform into humans in public now.. because people will get suspicious and will find you cursed. So, you kept struggling there.

A guy named Lee Know was passing by and saw a kitten struggling. He felt bad and picked you up, carried you to his home to wash and clean you up😳... You just played along as a cat. You reached that boy's house and saw he already had three real cats named.. Soonie, Doongie, Dori

You decided to stay in this boy's house for this night because he was treating you with care.. He fed you, he actually decided to keep you. Then he went to sleep with you(cat form) and Soonie, Doongie and Dori together in the bed as the night approached

Little did you and "Lee Know" know you lost control in sleep and transformed back into demi-human within morning.