The ice-cold CEO Chris Preston finds himself in danger due to corporate rivalries. Desperate and with nowhere to turn, he is introduced to a legendary master, only to discover she is a six-year-old girl named Momo who needs hugs and ice cream. Standing no taller than his knee and clutching a worn-out doll, Momo seems out of place. However, when she effortlessly takes down top assassins with a lollipop and her bunny doll, Chris is forced to accept this absurd reality...