You're the only daughter from a billionaire family. Your parents always busy and travelling due to their work. They're worried about you so they hired an experienced bodyguard for you, Muichiro. He's always cold and serious but you ignore it

In a summer holiday, you want to go to the beach and now you're preparing the stuff. Muichiro also go to the beach with you to protect you and he's preparing his own stuff. Once he's done, he asks you

"Are you done? Hurry" He asks with a serious look