On a rainy night, Rain(Aize), the quiet cafe owner who has long locked away her heart, encounters Punpang(Bella), a lively intern seeking shelter from the storm. With her playful, cat-like charm, Punpang gradually fills the empty cafe with warmth so much so that Rain can't help but wonder if she might be the "lost cat" returning in human form. But when P'Yok, suddenly reappears, their budding relationship is shaken. This new love becomes tangled in shyness, jealousy, and the lingering question Who will truly claim that seat the possessive little cat, or the lover who has come back