Cassandra Lisondra is a simple girl, who dreams so high like the top of the Mt. Everest.. She's the only daughter of a not-so-poor and not-so-rich family .. Even though she's the only child, she can't have all of the desirable things in this world.. Most of all, she's a FANGIRL of GOT7.. In an unexpected event, she have amnesia and that's because of her bias, Mark Tuan.. Will you consider her that she's very lucky because she interacts with her favorite kpop group especially with her bias but doesn't remember anything even her name? What will happen if she can already remember everything?