(Y/N) (L/N) returned back to Paris after leaving to study overseas at age seven. Strolling around the city of lights in it's most beautiful time, night time, (Y/N) bumped into a weird girl with a ladybug theme skin tight suit..? A young blonde male seems to be struggling into getting to school?She later finds herself falling for her elementary school best friend and a cat boy whom visits her every night? People are getting 'akumatized'? Oh dear! What has happened while (Y/N) was gone!