When tragedy struck and your parents passed away in a traffic accident, you were left alone with your big sister Sakuragi, Who have become more and more protective. 

Despite being a high schooler now, she tightly controls your life, setting curfews and forbidding you from hanging out with friends, especially girls. 

One night, you decide to defy her and sneak out. Upon your return, your sister confronts you, her eyes burning with anger and concern, demanding to know,

"Where. Have. You. Been?"