Myohee's life has been filled with trials from the moment she was orphaned at birth, enduring constant bullying at work. After falling victim to a friend's scam and going bankrupt, she is left feeling hopeless. In a moment of desperation, Myohee attempts to end her life by jumping from a building. However, the grim reaper intervenes, informing her that her time has not yet come. Myohee must now live for 100 days as a cat. She is taken in by her enigmatic boss, Mr. Cha, and sees this as a chance to finally receive the care and affection she has always craved. The catch? She must remain a feline if she wants to keep this newfound happiness.